24 lines
708 B
Python
24 lines
708 B
Python
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def color_is_dark(bg_color):
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# Remove '#' if present
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color = bg_color[1:] if bg_color.startswith('#') else bg_color
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# Extract RGB components
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r = int(color[0:2], 16) # Hex to R
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g = int(color[2:4], 16) # Hex to G
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b = int(color[4:6], 16) # Hex to B
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# Convert RGB values to normalized UI colors
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uicolors = [r / 255.0, g / 255.0, b / 255.0]
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# Apply formula to calculate perceived luminance
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c = [
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col / 12.92 if col <= 0.03928 else ((col + 0.055) / 1.055) ** 2.4
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for col in uicolors
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]
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# Calculate luminance
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luminance = (0.2126 * c[0]) + (0.7152 * c[1]) + (0.0722 * c[2])
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# Return whether the color is considered "dark"
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return luminance <= 0.179
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