Master Sword Blue on Abyssal Waters
#00ffee on #005765
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
6.48:1
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 -76.0
Clears Lc 75 — body text at a normal size and weight.
Light text on a darker ground — the negative sign is the polarity.
Colour difference
ΔE00 51.6
different colours
Above 10 — related only in the sense that both are colours.
Nothing to fix
This pair already clears 4.5:1, so #00ffee can stay exactly as it is. Check another pair.
And to someone missing a cone
protanopia
Ratio 6.78:1, ΔE00 50.5.
deuteranopia
Ratio 6.30:1, ΔE00 49.2.
tritanopia
Ratio 4.74:1, ΔE00 44.5.
The weakest of the three is tritanopia, where the two are ΔE00 44.5 apart against 51.6 for a trichromat — still clearly two colours.
Both colours have pages of their own: Master Sword Blue ·Abyssal Waters · the same pair the other way round ·all pairs