U4.04
Colour-vision-deficiency-safe palettes
Cards in this group · 3
- U4.04.1Coding two categories as red versus green leaves them indistinguishable for a meaningful share of viewers
- U4.04.2A palette stays distinguishable under color blindness by lightness contrast, not by hunting for safe hues
- U4.04.3A qualified chart still separates its categories after every color is stripped away in greyscale