Shadow Play on Matt Green
#2d1403 on #39ad48
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
5.97:1
Passes AA for body text
Not AAA (7:1). Swapping the two colours gives the same number — the ratio does not know which is the text.
APCA
Lc 47.1
Clears Lc 45 — large or heavy display text.
Dark text on a lighter ground.
Colour difference
ΔE00 58.7
different colours
Above 10 — related only in the sense that both are colours.
Nothing to fix
This pair already clears 4.5:1, so #2d1403 can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 6.88:1, ΔE00 52.0.
deuteranopia
Ratio 5.52:1, ΔE00 43.4.
tritanopia
Ratio 5.17:1, ΔE00 60.6.
The weakest of the three is deuteranopia, where the two are ΔE00 43.4 apart against 58.7 for a trichromat — still clearly two colours.
Both colours have pages of their own: Shadow Play ·Matt Green · the same pair the other way round ·all pairs