Galactic Federation on Cyantific
#330077 on #77c9c2
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
7.76:1
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.
Dark text on a lighter ground.
Colour difference
ΔE00 67.6
different colours
Above 10 — related only in the sense that both are colours.
Nothing to fix
This pair already clears 4.5:1, so #330077 can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 8.82:1, ΔE00 68.5.
deuteranopia
Ratio 7.24:1, ΔE00 58.9.
tritanopia
Ratio 6.75:1, ΔE00 51.7.
The weakest of the three is tritanopia, where the two are ΔE00 51.7 apart against 67.6 for a trichromat — still clearly two colours.
Both colours have pages of their own: Galactic Federation ·Cyantific · the same pair the other way round ·all pairs