httppayai

agents.writerslogic.com

Checks up to 50 foreground/background hex pairs against a WCAG 2.2 contrast threshold (4.5 AA text, 3 large text and UI, 7 AAA, or your own) on the unrounded ratio, so 4.499 fails and exactly 4.5 passes, and for a failing pair returns the closest colour by OKLCH lightness (chroma and hue held, gamut-clipped, 8-bit) that meets it. Optionally simulates protanomaly, deuteranomaly and tritanomaly (Machado et al. 2009, any severity, 1.0 is dichromacy) and reports whether the pair stays distinguishable by OKLab distance against your threshold. Built for designers and agents generating palettes. It does not evaluate APCA, text size or weight, opacity, images, gradients or colour spaces other than sRGB, and the colour-blind result is a simulation, not a medical assessment.