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Myndex Profile picture
Myndex
@MyndexResearch
🗺 Mapping Human Contrast 🌈 Color 👁 Vision🔬Research 🍊 APCA🐄Readability Criterion ✍🏻 Actually Awake Autistic Author 🌎W3C👨🏼‍🔬Invited Expert 📖WCAG3
Jan 22, 2022 • 5 tweets • 4 min read
Revised font lookup tables.
NEW: when used as body text, table cells outlined in yellow should have Lc 15 added to the listed contrast figure (see the +15). Fonts outlined in blue/teal (ish) may use the value as listed, but may benefit from an additional Lc10 to Lc15. ++ APCA find look up table this one is sorted by contrast valueAPCA find look up table this one is sorted by font size withAPCA find look up table legend --For developers, there are ready-to-go arrays of the look up tables, presorted by Lc value, and also with a table of pre-calculated interpolation values, and more.

They are in the data folder at the main repo:
github.com/Myndex/SAPC-AP…
Oct 25, 2021 • 4 tweets • 2 min read
A straight up contrast shootout!

On the left, the existing WCAG 2.x 1.4.3
On the right, the challenger, WCAG 3's APCA

IN THIS TEST: Body text, headlines, and non-text (buttons). Which do you find more readable?

(Note: on the left is WCAG 2 at AA or better, but it fails APCA) Image Some questions asked recently: How about CVD (color impaired)? How about about 3 way color? 3 way usually involved a button, text on the button, and body text on the page. 1.4.3 tried to fit a center grey (nope!) APCA is perceptually accurate, allowing full body text contrast..+