Memorial Black on Vintage Bloom
#091101 on #c0b0d0
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
9.49:1
Passes AA for body text
AAA too. Swapping the two colours gives the same number — the ratio does not know which is the text.
APCA
Lc 64.0
Clears Lc 60 — headlines and other larger text.
Dark text on a lighter ground.
Colour difference
ΔE00 64.2
different colours
Above 10 — related only in the sense that both are colours.
Nothing to fix
This pair already clears 4.5:1, so #091101 can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 9.25:1, ΔE00 62.7.
deuteranopia
Ratio 9.61:1, ΔE00 63.5.
tritanopia
Ratio 9.55:1, ΔE00 63.4.
The weakest of the three is protanopia, where the two are ΔE00 62.7 apart against 64.2 for a trichromat — still clearly two colours.
Both colours have pages of their own: Memorial Black ·Vintage Bloom · the same pair the other way round ·all pairs