Colors
Contrast ratios shown for text on the color swatch. Targets: AA 4.5:1, AAA 7:1 (normal text).
#FF0000
Best: #000000 5.25:1Normal: AALarge: AAA
Black on #FF0000: 5.25:1White on #FF0000: 4.00:1
#000000
Best: #FFFFFF 21.00:1Normal: AAALarge: AAA
Black on #000000: 1.00:1White on #000000: 21.00:1
#7F7F7F
Best: #000000 5.24:1Normal: AALarge: AAA
Black on #7F7F7F: 5.24:1White on #7F7F7F: 4.00:1