Diesel on Salted Capers
#322c2b on #a69151
Body text at this size
And the smaller size most interfaces actually use for paragraphs — the size that decides whether a pair is usable.
Caption text, which almost nothing passes.
WCAG 2.1
4.44:1
Large text only
Not AAA (7:1). Swapping the two colours gives the same number — the ratio does not know which is the text.
APCA
Lc 40.5
Clears Lc 30 — the floor: below this the draft considers text not readable at any size.
Dark text on a lighter ground.
Colour difference
ΔE00 42.2
different colours
Above 10 — related only in the sense that both are colours.
What the text colour has to become
#312b2a is the nearest colour of the same hue that passes AA on #a69151, at 4.50:1. Only the lightness moved — which is the point: your colour stays recognisably your colour.
And to someone missing a cone
protanopia
Ratio 4.34:1, ΔE00 41.0.
deuteranopia
Ratio 4.49:1, ΔE00 42.2.
tritanopia
Ratio 4.66:1, ΔE00 41.7.
The weakest of the three is protanopia, where the two are ΔE00 41.0 apart against 42.2 for a trichromat — still clearly two colours.
Both colours have pages of their own: Diesel ·Salted Capers · the same pair the other way round ·all pairs