Cyantific on Intergalactic Cowboy
#77c9c2 on #222266
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
7.33:1
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 -61.4
Clears Lc 60 — headlines and other larger text.
Light text on a darker ground — the negative sign is the polarity.
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 #77c9c2 can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 7.91:1, ΔE00 64.7.
deuteranopia
Ratio 7.03:1, ΔE00 57.3.
tritanopia
Ratio 6.47:1, ΔE00 50.7.
The weakest of the three is tritanopia, where the two are ΔE00 50.7 apart against 64.2 for a trichromat — still clearly two colours.
Both colours have pages of their own: Cyantific ·Intergalactic Cowboy · the same pair the other way round ·all pairs