Grapest on Flash in the Pan
#880066 on #ff9977
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
4.50:1
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 46.9
Clears Lc 45 — large or heavy display text.
Dark text on a lighter ground.
Colour difference
ΔE00 52.4
different colours
Above 10 — related only in the sense that both are colours.
Nothing to fix
This pair already clears 4.5:1, so #880066 can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 5.04:1, ΔE00 61.1.
deuteranopia
Ratio 4.31:1, ΔE00 54.5.
tritanopia
Ratio 4.04:1, ΔE00 37.6.
The weakest of the three is tritanopia, where the two are ΔE00 37.6 apart against 52.4 for a trichromat — still clearly two colours.
Both colours have pages of their own: Grapest ·Flash in the Pan · the same pair the other way round ·all pairs