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1. Embed this notice
   Christian Lawson-Perfect (christianp@mathstodon.xyz)'s status on Monday, 15-Jan-2024 23:19:59 JST Christian Lawson-Perfect

   I'm severely colourblind - my eyes can hardly detect red light at all.
   So, working in web development, picking colour schemes is hard.
   There are tools around to help you pick accessible colour schemes, but they assume that you can tell by looking that a colour is the one you want, and the only information you need the computer to calculate is the contrast ratio.
   I realised I need a tool that will take the name of a colour and find a shade that gives a target contrast ratio.

   Here it is: https://colourblind-palette-maker.glitch.me/

   It uses the new APCA perceptual contrast algorithm and the Oklab colour space to help me find colours that people with better colour vision will interpret correctly, while ensuring there's good contrast for as many people as possible.

   #accessibility #a11y #WebDev

   • Embed this notice
     Jake Hildreth (acorn) :blacker_heart_outline: (horse@infosec.exchange)'s status on Monday, 15-Jan-2024 23:36:38 JST Jake Hildreth (acorn) :blacker_heart_outline:

     in reply to

     • Will Jessop

     @christianp @wj Have you tried the Strong Protan versions that are relatively new? The OG version did t do much for me, but SP does! Being super red-weak succcccccks.

   • Embed this notice
     Christian Lawson-Perfect (christianp@mathstodon.xyz)'s status on Monday, 15-Jan-2024 23:36:40 JST Christian Lawson-Perfect

     in reply to

     • Will Jessop

     @wj I took part in a study to measure their effectiveness; they did less than nothing for me. Thanks for trying to be helpful, but almost every time I mention my colourblindness someone asks me if I've heard of them.

   • Embed this notice
     Will Jessop (wj@ruby.social)'s status on Monday, 15-Jan-2024 23:36:42 JST Will Jessop

     in reply to

     @christianp have you seen the colour blindness glasses out there? I’m sure you have, but in case you haven’t here’s an example https://enchroma.co.uk/collections/colour-blind-glasses

   • Embed this notice
     Jake Hildreth (acorn) :blacker_heart_outline: (horse@infosec.exchange)'s status on Tuesday, 16-Jan-2024 00:34:52 JST Jake Hildreth (acorn) :blacker_heart_outline:

     in reply to

     @christianp Hmmm, maybe they discontinued it. I got mine ~1.5 years ago.

     They are very dark, and according to my normal vision-having wife, they make everything look very red/purple. To me, reds become visible and orange absolutely fucking POPS. I can even tell see some variation in greens.

   • Embed this notice
     Christian Lawson-Perfect (christianp@mathstodon.xyz)'s status on Tuesday, 16-Jan-2024 00:34:53 JST Christian Lawson-Perfect

     in reply to

     • Jake Hildreth (acorn) :blacker_heart_outline:

     @horse as far as I know, the ones I used had the correct lenses for protanopia, and I can't find anything on the enchroma website to say they've got an extra strong version, just "protan lenses".
     Since they work by partially blocking the colours you *can* see, they'd have to block out almost everything to have an effect on me.

   • Embed this notice
     Jay Baker (mediaactivist@todon.eu)'s status on Tuesday, 16-Jan-2024 07:37:05 JST Jay Baker

     in reply to

     @christianp As a multimedia artist who is red-green colourblind, I really appreciate this!