Corrosive Green on Quiet Abyss
#54d905 on #160435
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
10.25:1
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 -67.3
Clears Lc 60 — headlines and other larger text.
Light text on a darker ground — the negative sign is the polarity.
Colour difference
ΔE00 82.6
different colours
Above 10 — related only in the sense that both are colours.
Nothing to fix
This pair already clears 4.5:1, so #54d905 can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 11.59:1, ΔE00 89.7.
deuteranopia
Ratio 9.55:1, ΔE00 81.5.
tritanopia
Ratio 8.84:1, ΔE00 59.1.
The weakest of the three is tritanopia, where the two are ΔE00 59.1 apart against 82.6 for a trichromat — still clearly two colours.
Both colours have pages of their own: Corrosive Green ·Quiet Abyss · the same pair the other way round ·all pairs