Tableau des couleurs pour Tkinter et Tix

Pour ce que ça vaut, voici une version qui ne nécessite pas Tix. Il utilise un grid manager pour que vous puissiez voir toutes les couleurs en même temps. Vous pouvez ajuster MAX_ROWS et FONT_SIZE pour votre écran.

import tkinter as tk

COLORS = ['snow', 'ghost white', 'white smoke', 'gainsboro', 'floral white', 'old lace',
          'linen', 'antique white', 'papaya whip', 'blanched almond', 'bisque', 'peach puff',
          'navajo white', 'lemon chiffon', 'mint cream', 'azure', 'alice blue', 'lavender',
          'lavender blush', 'misty rose', 'dark slate gray', 'dim gray', 'slate gray',
          'light slate gray', 'gray', 'light grey', 'midnight blue', 'navy', 'cornflower blue', 'dark slate blue',
          'slate blue', 'medium slate blue', 'light slate blue', 'medium blue', 'royal blue',  'blue',
          'dodger blue', 'deep sky blue', 'sky blue', 'light sky blue', 'steel blue', 'light steel blue',
          'light blue', 'powder blue', 'pale turquoise', 'dark turquoise', 'medium turquoise', 'turquoise',
          'cyan', 'light cyan', 'cadet blue', 'medium aquamarine', 'aquamarine', 'dark green', 'dark olive green',
          'dark sea green', 'sea green', 'medium sea green', 'light sea green', 'pale green', 'spring green',
          'lawn green', 'medium spring green', 'green yellow', 'lime green', 'yellow green',
          'forest green', 'olive drab', 'dark khaki', 'khaki', 'pale goldenrod', 'light goldenrod yellow',
          'light yellow', 'yellow', 'gold', 'light goldenrod', 'goldenrod', 'dark goldenrod', 'rosy brown',
          'indian red', 'saddle brown', 'sandy brown',
          'dark salmon', 'salmon', 'light salmon', 'orange', 'dark orange',
          'coral', 'light coral', 'tomato', 'orange red', 'red', 'hot pink', 'deep pink', 'pink', 'light pink',
          'pale violet red', 'maroon', 'medium violet red', 'violet red',
          'medium orchid', 'dark orchid', 'dark violet', 'blue violet', 'purple', 'medium purple',
          'thistle', 'snow2', 'snow3',
          'snow4', 'seashell2', 'seashell3', 'seashell4', 'AntiqueWhite1', 'AntiqueWhite2',
          'AntiqueWhite3', 'AntiqueWhite4', 'bisque2', 'bisque3', 'bisque4', 'PeachPuff2',
          'PeachPuff3', 'PeachPuff4', 'NavajoWhite2', 'NavajoWhite3', 'NavajoWhite4',
          'LemonChiffon2', 'LemonChiffon3', 'LemonChiffon4', 'cornsilk2', 'cornsilk3',
          'cornsilk4', 'ivory2', 'ivory3', 'ivory4', 'honeydew2', 'honeydew3', 'honeydew4',
          'LavenderBlush2', 'LavenderBlush3', 'LavenderBlush4', 'MistyRose2', 'MistyRose3',
          'MistyRose4', 'azure2', 'azure3', 'azure4', 'SlateBlue1', 'SlateBlue2', 'SlateBlue3',
          'SlateBlue4', 'RoyalBlue1', 'RoyalBlue2', 'RoyalBlue3', 'RoyalBlue4', 'blue2', 'blue4',
          'DodgerBlue2', 'DodgerBlue3', 'DodgerBlue4', 'SteelBlue1', 'SteelBlue2',
          'SteelBlue3', 'SteelBlue4', 'DeepSkyBlue2', 'DeepSkyBlue3', 'DeepSkyBlue4',
          'SkyBlue1', 'SkyBlue2', 'SkyBlue3', 'SkyBlue4', 'LightSkyBlue1', 'LightSkyBlue2',
          'LightSkyBlue3', 'LightSkyBlue4', 'SlateGray1', 'SlateGray2', 'SlateGray3',
          'SlateGray4', 'LightSteelBlue1', 'LightSteelBlue2', 'LightSteelBlue3',
          'LightSteelBlue4', 'LightBlue1', 'LightBlue2', 'LightBlue3', 'LightBlue4',
          'LightCyan2', 'LightCyan3', 'LightCyan4', 'PaleTurquoise1', 'PaleTurquoise2',
          'PaleTurquoise3', 'PaleTurquoise4', 'CadetBlue1', 'CadetBlue2', 'CadetBlue3',
          'CadetBlue4', 'turquoise1', 'turquoise2', 'turquoise3', 'turquoise4', 'cyan2', 'cyan3',
          'cyan4', 'DarkSlateGray1', 'DarkSlateGray2', 'DarkSlateGray3', 'DarkSlateGray4',
          'aquamarine2', 'aquamarine4', 'DarkSeaGreen1', 'DarkSeaGreen2', 'DarkSeaGreen3',
          'DarkSeaGreen4', 'SeaGreen1', 'SeaGreen2', 'SeaGreen3', 'PaleGreen1', 'PaleGreen2',
          'PaleGreen3', 'PaleGreen4', 'SpringGreen2', 'SpringGreen3', 'SpringGreen4',
          'green2', 'green3', 'green4', 'chartreuse2', 'chartreuse3', 'chartreuse4',
          'OliveDrab1', 'OliveDrab2', 'OliveDrab4', 'DarkOliveGreen1', 'DarkOliveGreen2',
          'DarkOliveGreen3', 'DarkOliveGreen4', 'khaki1', 'khaki2', 'khaki3', 'khaki4',
          'LightGoldenrod1', 'LightGoldenrod2', 'LightGoldenrod3', 'LightGoldenrod4',
          'LightYellow2', 'LightYellow3', 'LightYellow4', 'yellow2', 'yellow3', 'yellow4',
          'gold2', 'gold3', 'gold4', 'goldenrod1', 'goldenrod2', 'goldenrod3', 'goldenrod4',
          'DarkGoldenrod1', 'DarkGoldenrod2', 'DarkGoldenrod3', 'DarkGoldenrod4',
          'RosyBrown1', 'RosyBrown2', 'RosyBrown3', 'RosyBrown4', 'IndianRed1', 'IndianRed2',
          'IndianRed3', 'IndianRed4', 'sienna1', 'sienna2', 'sienna3', 'sienna4', 'burlywood1',
          'burlywood2', 'burlywood3', 'burlywood4', 'wheat1', 'wheat2', 'wheat3', 'wheat4', 'tan1',
          'tan2', 'tan4', 'chocolate1', 'chocolate2', 'chocolate3', 'firebrick1', 'firebrick2',
          'firebrick3', 'firebrick4', 'brown1', 'brown2', 'brown3', 'brown4', 'salmon1', 'salmon2',
          'salmon3', 'salmon4', 'LightSalmon2', 'LightSalmon3', 'LightSalmon4', 'orange2',
          'orange3', 'orange4', 'DarkOrange1', 'DarkOrange2', 'DarkOrange3', 'DarkOrange4',
          'coral1', 'coral2', 'coral3', 'coral4', 'tomato2', 'tomato3', 'tomato4', 'OrangeRed2',
          'OrangeRed3', 'OrangeRed4', 'red2', 'red3', 'red4', 'DeepPink2', 'DeepPink3', 'DeepPink4',
          'HotPink1', 'HotPink2', 'HotPink3', 'HotPink4', 'pink1', 'pink2', 'pink3', 'pink4',
          'LightPink1', 'LightPink2', 'LightPink3', 'LightPink4', 'PaleVioletRed1',
          'PaleVioletRed2', 'PaleVioletRed3', 'PaleVioletRed4', 'maroon1', 'maroon2',
          'maroon3', 'maroon4', 'VioletRed1', 'VioletRed2', 'VioletRed3', 'VioletRed4',
          'magenta2', 'magenta3', 'magenta4', 'orchid1', 'orchid2', 'orchid3', 'orchid4', 'plum1',
          'plum2', 'plum3', 'plum4', 'MediumOrchid1', 'MediumOrchid2', 'MediumOrchid3',
          'MediumOrchid4', 'DarkOrchid1', 'DarkOrchid2', 'DarkOrchid3', 'DarkOrchid4',
          'purple1', 'purple2', 'purple3', 'purple4', 'MediumPurple1', 'MediumPurple2',
          'MediumPurple3', 'MediumPurple4', 'thistle1', 'thistle2', 'thistle3', 'thistle4',
          'gray1', 'gray2', 'gray3', 'gray4', 'gray5', 'gray6', 'gray7', 'gray8', 'gray9', 'gray10',
          'gray11', 'gray12', 'gray13', 'gray14', 'gray15', 'gray16', 'gray17', 'gray18', 'gray19',
          'gray20', 'gray21', 'gray22', 'gray23', 'gray24', 'gray25', 'gray26', 'gray27', 'gray28',
          'gray29', 'gray30', 'gray31', 'gray32', 'gray33', 'gray34', 'gray35', 'gray36', 'gray37',
          'gray38', 'gray39', 'gray40', 'gray42', 'gray43', 'gray44', 'gray45', 'gray46', 'gray47',
          'gray48', 'gray49', 'gray50', 'gray51', 'gray52', 'gray53', 'gray54', 'gray55', 'gray56',
          'gray57', 'gray58', 'gray59', 'gray60', 'gray61', 'gray62', 'gray63', 'gray64', 'gray65',
          'gray66', 'gray67', 'gray68', 'gray69', 'gray70', 'gray71', 'gray72', 'gray73', 'gray74',
          'gray75', 'gray76', 'gray77', 'gray78', 'gray79', 'gray80', 'gray81', 'gray82', 'gray83',
          'gray84', 'gray85', 'gray86', 'gray87', 'gray88', 'gray89', 'gray90', 'gray91', 'gray92',
          'gray93', 'gray94', 'gray95', 'gray97', 'gray98', 'gray99']


class ColorChart(tk.Frame):

    MAX_ROWS = 36
    FONT_SIZE = 10

    def __init__(self, root):
        tk.Frame.__init__(self, root)
        r = 0
        c = 0

        for color in COLORS:
            label = tk.Label(self, text=color, bg=color,
                             font=("Times", self.FONT_SIZE, "bold"))
            label.grid(row=r, column=c, sticky="ew")
            r += 1

            if r > self.MAX_ROWS:
                r = 0
                c += 1

        self.pack(expand=1, fill="both")


if __name__ == '__main__':
    root = tk.Tk()
    root.title("Named Color Chart")
    app = ColorChart(root)
    root.mainloop()

il y a même le noms des couleurs officielles documentée dans le les couleurs de la page de manuel pour les Savoirs traditionnels.

Qu'en est-il de la lecture des couleurs d'un fichier ?

import sys, os
rgb_path = [
    "/usr/share/X11/rgb.txt", #Linux
    "/usr/X11/share/X11/rgb.txt", #MacOS
    ]
COLORS = []
for filename in rgb_path:
    if os.path.exists(filename):
        with open(filename, 'r') as filedesc:
            for line in filedesc:
                if not (line.isspace() or line.startswith("#")):
                    # take the part after the last \t rsplit("\t",[-1])
                    # and remove the carriage return character [:-1]
                    COLORS.append(line.rsplit("\t",1)[-1][:-1])
        break

Et voici ce véhicule réinventé. Il utilise sa propre implémentation de widget de cadre

from tkinter import *


class ScrolledFrame(Frame):
    def __init__(self, master=None, *args, **kwargs):
        top = Frame(master)  # create top frame, containing all things
        # attach scrollbars
        vscroll = Scrollbar(top)
        vscroll.pack(side='right', fill='y')
        hscroll = Scrollbar(top, orient='horizontal')
        hscroll.pack(side='bottom', fill='x')
        # hack: insert self into scrollable canvas
        canvas = Canvas(top, highlightthickness=0)
        canvas.pack(expand=True, fill='both')
        super().__init__(master=canvas, *args, **kwargs)  # create
        canvas.create_window(0,0, window=self,
                             anchor='nw', tags='frame')  # insert
        # add a hack to rebuild scrollable area size
        canvas.bind('<Configure>', self.__set_scroll)
        # cross-bind scrolling
        vscroll['command'] = canvas.yview
        canvas['yscrollcommand'] = vscroll.set
        hscroll['command'] = canvas.xview
        canvas['xscrollcommand'] = hscroll.set
        # attach hierarchically
        self._top = top
        self._top._vscroll = vscroll
        self._top._hscroll = hscroll
        self._top._canvas = canvas

    def pack(self, *args, **kwargs):
        '''
        A wrapper over tkinter's pack
        '''
        return self._top.pack(*args, **kwargs) # pack topmost

    def __set_scroll(self, event=None):
        canvas = self._top._canvas
        canvas.config(scrollregion=canvas.bbox('frame'))

def showcolors(colors):
    colors = colors[:]
    root = Tk()
    root.title('Tkinter colors showcase')
    Label(root, text='Double click to copy to clipboard').pack(fill='x')
    top = ScrolledFrame(root)
    colnum = int((len(colors)/3) ** 0.5)
    row = 0
    while colors:
        chunk, colors = colors[:colnum], colors[colnum:]
        for col, color in enumerate(chunk):
            lab = Label(top, text=color, bg=color)
            lab.grid(row=row, column=col, sticky='wens')
            lab.bind('<Double-1>', _clipboard_copy(lab))
            lab.bind('<Enter>', lambda ev, lab=lab: lab.config(fg='white'))
            lab.bind('<Leave>', lambda ev, lab=lab: lab.config(fg='black'))
        row += 1
    top.pack(expand=True, fill='both')
    root.mainloop()

def _clipboard_copy(inst):
    def wrapper(event):
        inst.clipboard_clear()
        inst.clipboard_append(inst['text'])
    return wrapper



COLORS = ['snow', 'ghost white', 'white smoke', 'gainsboro', 'floral white', 'old lace',
          'linen', 'antique white', 'papaya whip', 'blanched almond', 'bisque', 'peach puff',
          'navajo white', 'lemon chiffon', 'mint cream', 'azure', 'alice blue', 'lavender',
          'lavender blush', 'misty rose', 'dark slate gray', 'dim gray', 'slate gray',
          'light slate gray', 'gray', 'light grey', 'midnight blue', 'navy', 'cornflower blue', 'dark slate blue',
          'slate blue', 'medium slate blue', 'light slate blue', 'medium blue', 'royal blue',  'blue',
          'dodger blue', 'deep sky blue', 'sky blue', 'light sky blue', 'steel blue', 'light steel blue',
          'light blue', 'powder blue', 'pale turquoise', 'dark turquoise', 'medium turquoise', 'turquoise',
          'cyan', 'light cyan', 'cadet blue', 'medium aquamarine', 'aquamarine', 'dark green', 'dark olive green',
          'dark sea green', 'sea green', 'medium sea green', 'light sea green', 'pale green', 'spring green',
          'lawn green', 'medium spring green', 'green yellow', 'lime green', 'yellow green',
          'forest green', 'olive drab', 'dark khaki', 'khaki', 'pale goldenrod', 'light goldenrod yellow',
          'light yellow', 'yellow', 'gold', 'light goldenrod', 'goldenrod', 'dark goldenrod', 'rosy brown',
          'indian red', 'saddle brown', 'sandy brown',
          'dark salmon', 'salmon', 'light salmon', 'orange', 'dark orange',
          'coral', 'light coral', 'tomato', 'orange red', 'red', 'hot pink', 'deep pink', 'pink', 'light pink',
          'pale violet red', 'maroon', 'medium violet red', 'violet red',
          'medium orchid', 'dark orchid', 'dark violet', 'blue violet', 'purple', 'medium purple',
          'thistle', 'snow2', 'snow3',
          'snow4', 'seashell2', 'seashell3', 'seashell4', 'AntiqueWhite1', 'AntiqueWhite2',
          'AntiqueWhite3', 'AntiqueWhite4', 'bisque2', 'bisque3', 'bisque4', 'PeachPuff2',
          'PeachPuff3', 'PeachPuff4', 'NavajoWhite2', 'NavajoWhite3', 'NavajoWhite4',
          'LemonChiffon2', 'LemonChiffon3', 'LemonChiffon4', 'cornsilk2', 'cornsilk3',
          'cornsilk4', 'ivory2', 'ivory3', 'ivory4', 'honeydew2', 'honeydew3', 'honeydew4',
          'LavenderBlush2', 'LavenderBlush3', 'LavenderBlush4', 'MistyRose2', 'MistyRose3',
          'MistyRose4', 'azure2', 'azure3', 'azure4', 'SlateBlue1', 'SlateBlue2', 'SlateBlue3',
          'SlateBlue4', 'RoyalBlue1', 'RoyalBlue2', 'RoyalBlue3', 'RoyalBlue4', 'blue2', 'blue4',
          'DodgerBlue2', 'DodgerBlue3', 'DodgerBlue4', 'SteelBlue1', 'SteelBlue2',
          'SteelBlue3', 'SteelBlue4', 'DeepSkyBlue2', 'DeepSkyBlue3', 'DeepSkyBlue4',
          'SkyBlue1', 'SkyBlue2', 'SkyBlue3', 'SkyBlue4', 'LightSkyBlue1', 'LightSkyBlue2',
          'LightSkyBlue3', 'LightSkyBlue4', 'SlateGray1', 'SlateGray2', 'SlateGray3',
          'SlateGray4', 'LightSteelBlue1', 'LightSteelBlue2', 'LightSteelBlue3',
          'LightSteelBlue4', 'LightBlue1', 'LightBlue2', 'LightBlue3', 'LightBlue4',
          'LightCyan2', 'LightCyan3', 'LightCyan4', 'PaleTurquoise1', 'PaleTurquoise2',
          'PaleTurquoise3', 'PaleTurquoise4', 'CadetBlue1', 'CadetBlue2', 'CadetBlue3',
          'CadetBlue4', 'turquoise1', 'turquoise2', 'turquoise3', 'turquoise4', 'cyan2', 'cyan3',
          'cyan4', 'DarkSlateGray1', 'DarkSlateGray2', 'DarkSlateGray3', 'DarkSlateGray4',
          'aquamarine2', 'aquamarine4', 'DarkSeaGreen1', 'DarkSeaGreen2', 'DarkSeaGreen3',
          'DarkSeaGreen4', 'SeaGreen1', 'SeaGreen2', 'SeaGreen3', 'PaleGreen1', 'PaleGreen2',
          'PaleGreen3', 'PaleGreen4', 'SpringGreen2', 'SpringGreen3', 'SpringGreen4',
          'green2', 'green3', 'green4', 'chartreuse2', 'chartreuse3', 'chartreuse4',
          'OliveDrab1', 'OliveDrab2', 'OliveDrab4', 'DarkOliveGreen1', 'DarkOliveGreen2',
          'DarkOliveGreen3', 'DarkOliveGreen4', 'khaki1', 'khaki2', 'khaki3', 'khaki4',
          'LightGoldenrod1', 'LightGoldenrod2', 'LightGoldenrod3', 'LightGoldenrod4',
          'LightYellow2', 'LightYellow3', 'LightYellow4', 'yellow2', 'yellow3', 'yellow4',
          'gold2', 'gold3', 'gold4', 'goldenrod1', 'goldenrod2', 'goldenrod3', 'goldenrod4',
          'DarkGoldenrod1', 'DarkGoldenrod2', 'DarkGoldenrod3', 'DarkGoldenrod4',
          'RosyBrown1', 'RosyBrown2', 'RosyBrown3', 'RosyBrown4', 'IndianRed1', 'IndianRed2',
          'IndianRed3', 'IndianRed4', 'sienna1', 'sienna2', 'sienna3', 'sienna4', 'burlywood1',
          'burlywood2', 'burlywood3', 'burlywood4', 'wheat1', 'wheat2', 'wheat3', 'wheat4', 'tan1',
          'tan2', 'tan4', 'chocolate1', 'chocolate2', 'chocolate3', 'firebrick1', 'firebrick2',
          'firebrick3', 'firebrick4', 'brown1', 'brown2', 'brown3', 'brown4', 'salmon1', 'salmon2',
          'salmon3', 'salmon4', 'LightSalmon2', 'LightSalmon3', 'LightSalmon4', 'orange2',
          'orange3', 'orange4', 'DarkOrange1', 'DarkOrange2', 'DarkOrange3', 'DarkOrange4',
          'coral1', 'coral2', 'coral3', 'coral4', 'tomato2', 'tomato3', 'tomato4', 'OrangeRed2',
          'OrangeRed3', 'OrangeRed4', 'red2', 'red3', 'red4', 'DeepPink2', 'DeepPink3', 'DeepPink4',
          'HotPink1', 'HotPink2', 'HotPink3', 'HotPink4', 'pink1', 'pink2', 'pink3', 'pink4',
          'LightPink1', 'LightPink2', 'LightPink3', 'LightPink4', 'PaleVioletRed1',
          'PaleVioletRed2', 'PaleVioletRed3', 'PaleVioletRed4', 'maroon1', 'maroon2',
          'maroon3', 'maroon4', 'VioletRed1', 'VioletRed2', 'VioletRed3', 'VioletRed4',
          'magenta2', 'magenta3', 'magenta4', 'orchid1', 'orchid2', 'orchid3', 'orchid4', 'plum1',
          'plum2', 'plum3', 'plum4', 'MediumOrchid1', 'MediumOrchid2', 'MediumOrchid3',
          'MediumOrchid4', 'DarkOrchid1', 'DarkOrchid2', 'DarkOrchid3', 'DarkOrchid4',
          'purple1', 'purple2', 'purple3', 'purple4', 'MediumPurple1', 'MediumPurple2',
          'MediumPurple3', 'MediumPurple4', 'thistle1', 'thistle2', 'thistle3', 'thistle4',
          'gray1', 'gray2', 'gray3', 'gray4', 'gray5', 'gray6', 'gray7', 'gray8', 'gray9', 'gray10',
          'gray11', 'gray12', 'gray13', 'gray14', 'gray15', 'gray16', 'gray17', 'gray18', 'gray19',
          'gray20', 'gray21', 'gray22', 'gray23', 'gray24', 'gray25', 'gray26', 'gray27', 'gray28',
          'gray29', 'gray30', 'gray31', 'gray32', 'gray33', 'gray34', 'gray35', 'gray36', 'gray37',
          'gray38', 'gray39', 'gray40', 'gray42', 'gray43', 'gray44', 'gray45', 'gray46', 'gray47',
          'gray48', 'gray49', 'gray50', 'gray51', 'gray52', 'gray53', 'gray54', 'gray55', 'gray56',
          'gray57', 'gray58', 'gray59', 'gray60', 'gray61', 'gray62', 'gray63', 'gray64', 'gray65',
          'gray66', 'gray67', 'gray68', 'gray69', 'gray70', 'gray71', 'gray72', 'gray73', 'gray74',
          'gray75', 'gray76', 'gray77', 'gray78', 'gray79', 'gray80', 'gray81', 'gray82', 'gray83',
          'gray84', 'gray85', 'gray86', 'gray87', 'gray88', 'gray89', 'gray90', 'gray91', 'gray92',
          'gray93', 'gray94', 'gray95', 'gray97', 'gray98', 'gray99']

if __name__ == '__main__':
    showcolors(COLORS)

c'est quelque chose comme la vitrine de Tcl/Tk, mais pythonic)

intégrer un certain nombre de d'autres réponses dans la version définitive complète avec:

• Défilement
• Copie couleur hexcode sur presse-papiers
• utilisation d'une liste de couleurs intégrée
• texte Blanc sur les couleurs foncées
• Ajustement pour moderne de haute résolution affiche

officiel tkinter, les couleurs de la page de manuel est dérivé de X11 noms des couleurs, et une version devrait être inclus dans votre installation de python sous %PYTHONPATH%/Tools/pynche/X/rgb.txt . Voici un explication détaillée sur les formules utilisées pour calculer une bonne couleur de texte basé sur contraste et luminance.

import tkinter as tk
from Tools.pynche import ColorDB
import os
import colorsys

rgb_file = os.path.join(os.path.dirname(ColorDB.__file__), 'X', 'rgb.txt')
rgb_db = ColorDB.get_colordb(rgb_file)
colors = [x.lower().replace(' ', '') for x in rgb_db.unique_names()]

# Separating the grayscale looks nicer
grayscale = []
for v in ['black'] + ['gray{}'.format(i) for i in range(0, 101)] + ['white']:
    if v in colors:
        colors.remove(v)
        grayscale.append(v)
colors.sort(key=lambda x: colorsys.rgb_to_hls(*rgb_db.find_byname(x)))
colors = grayscale + colors

# Use white on dark colors, black on light
def calculateContrast(color):
    # Converting to 8 bit from 16 bit, and diving by 255 (255 * 256 = 65280)
    rgb = [c / 65280 for c in color]
    r, g, b = [(c / 12.92) if c <= 0.03928 else
               ((c + 0.055) / 1.055) ** 2.4 for c in rgb]
    luminance = 0.2126 * r + 0.7152 * g + 0.0722 * b
    if luminance > 0.179:
        return '#000000'
    else:
        return '#ffffff'

class ColorGrid(tk.Frame):
    def __init__(self, root):
        super().__init__(root)
        self.canvas = tk.Canvas(root)
        self.frame = tk.Frame(self.canvas)
        self.scroll = tk.Scrollbar(root, orient=tk.VERTICAL,
                                   command=self.canvas.yview)
        self.canvas.grid(row=0, column=0, sticky='nsew')
        self.scroll.grid(row=0, column=1, sticky='nsw')
        self.canvas.create_window(0, 0, window=self.frame, anchor='nw')
        root.grid_rowconfigure(0, weight=1)
        root.grid_columnconfigure(0, weight=1)
        self.canvas.bind('<Configure>', self._onFrameConfigure)

        columns = 8
        rows = len(colors) // columns + 1
        max_width = len(max(colors, key=lambda x: len(x)))
        for i, color in enumerate(colors):
            fg_color = calculateContrast(root.winfo_rgb(color))
            # Pseudo-label, allows for easy changing of border color
            entry = tk.Entry(self.frame, width=max_width, justify=tk.CENTER,
                             relief=tk.FLAT, disabledbackground=color,
                             disabledforeground=fg_color, cursor='arrow',
                             highlightbackground=color, highlightthickness=3)
            entry.insert(0, color)
            entry.config(state='disabled')
            entry.grid(row=i % rows, column=i // rows, sticky="ew")
            entry.bind('<Double-1>', self._clipboard_copy)
            entry.bind('<Enter>', lambda event, widget=entry: widget.config(
                       highlightbackground=widget['disabledforeground']))
            entry.bind('<Leave>', lambda event, widget=entry: widget.config(
                       highlightbackground=widget['disabledbackground']))

        self.canvas.update()
        new_height = min(self.winfo_screenheight() * 2 // 3,
                         self.canvas.bbox('all')[3])
        self.canvas.config(width=self.canvas.bbox('all')[2],
                           yscrollcommand=self.scroll.set, height=new_height)
        self.canvas.bind_all('<MouseWheel>', lambda event:
                             self.canvas.yview_scroll(int(-1 * event.delta),
                                                      'units'))

    # Copy hex code to clipboard
    def _clipboard_copy(self, event):
        entry = event.widget
        rgb_tuple = self.winfo_rgb(entry.get())
        hex_code = '#{:02x}{:02x}{:02x}'.format(*[i // 256 for i in rgb_tuple])
        self.clipboard_clear()
        self.clipboard_append(hex_code)

    def _onFrameConfigure(self, event):
        self.canvas.config(scrollregion=self.canvas.bbox('all'))

if __name__ == '__main__':
    # Better readability on high DPI displays
    try:
        from ctypes import windll
        windll.shcore.SetProcessDpiAwareness(1)
    except Exception:
        pass
    root = tk.Tk()
    root.title("Named Color Chart")
    ColorGrid(root).grid(row=0, column=0, sticky='nsew')
    root.mainloop()