Color Universal Design (CUD) / Colorblind Barrier FreeMost important practical points (for biological scientists) In the fluorescent double-staining micrographs, DNA chips, etc, do not use the combination of red and green. Use magenta (purple) and green instead. (example) For micrographs with triple or more channels, additionally show either greyscale picture of each channel , or the combination of most important two channels in magenta and green. (e
