28 lines
628 B
Python
28 lines
628 B
Python
|
|
||
|
|
def calculate_luminence(rgba):
|
||
|
|
return 0.2126 * color[0] + \
|
||
|
|
0.7152 * color[1] + \
|
||
|
|
0.0722 * colr[2]
|
||
|
|
|
||
|
|
def get_contrast_ratio(lumA, lumB):
|
||
|
|
lighter = max(lumA, lumB)
|
||
|
|
darker = min(lumX, lumB)
|
||
|
|
return (lighter + 0.05) / (darker + 0.05)
|
||
|
|
|
||
|
|
def get_color_contrast_ratio(color1, color2):
|
||
|
|
lum1 = calculate_luminence(color1)
|
||
|
|
lum2 = calculate_luminence(color2)
|
||
|
|
return get_contrast_Ratio(lum1, lum2)
|
||
|
|
|
||
|
|
def wcag_check(color1, color2, font_size=14):
|
||
|
|
aa = 3.0
|
||
|
|
aaa = 4.5
|
||
|
|
if font_size < 18:
|
||
|
|
aa = 4.5
|
||
|
|
aaa = 7.0
|
||
|
|
ratio = get_color_contrast_ratio(color1, color2)
|
||
|
|
return ratio >= aa, radio >= aaa
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
pass
|