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24 lines
741 B
Python
24 lines
741 B
Python
def hex_to_rgb(value: str) -> tuple[int, int, int]:
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h = value.lstrip("#")
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if len(h) != 6:
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return (255, 255, 255)
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try:
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return (int(h[0:2], 16), int(h[2:4], 16), int(h[4:6], 16))
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except ValueError:
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return (255, 255, 255)
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def readable_color(rgb: tuple[int, int, int]) -> tuple[int, int, int]:
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r, g, b = rgb
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lum = 0.299 * r + 0.587 * g + 0.114 * b
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if lum >= 130:
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return (r, g, b)
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t = (130 - lum) / (255 - lum)
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return (round(r + (255 - r) * t), round(g + (255 - g) * t), round(b + (255 - b) * t))
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def normalize_palette(colors) -> list[str]:
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if isinstance(colors, dict):
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colors = colors.values()
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return [c.upper() for c in colors if isinstance(c, str) and c]
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