Your daily frequent11y newsletter, brought to you by @ChrisBAshton:

From A Colourblind Designer To The World: Please Stop Using Red And Green Together

• A designer with deuteranopia – red/green colourblindness – writes about how the use of green and red in web design is problematic. Namely:
  • Using colour to indicate validation status in forms. Adding other visual indicators such as icons would help to differentiate.
  • Using green and red to indicate primary and secondary actions, e.g. “OK” and “Cancel”. Using fill colour just for the primary action helps to disambiguate.
  • Red and green used to convey meaning in charts – literally unusable for people with colourblindness.
• If you have to use red and green in your design, choose different luminosity (i.e. make either the red or the green darker and saturated). UK traffic lights look quite similar between red and amber, but the green is very distinct because its saturation is different from the other two.
• Colourblindness affects 1 in 12 men and 1 in 200 women.

Prefer longer newsletters? You can subscribe to week11y, fortnight11y or even month11y updates! Every newsletter gets the same content; it is your choice to have short, regular emails or longer, less frequent ones. Curated with ♥ by developer @ChrisBAshton.