Master Sword Blue on Black Sabbath
#00ffee on #220022
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
15.16:1
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 -90.6
Clears Lc 90 — the level the draft treats as a maximum worth targeting for body text.
Light text on a darker ground — the negative sign is the polarity.
Colour difference
ΔE00 96.6
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 17.70:1, ΔE00 93.9.
deuteranopia
Ratio 13.87:1, ΔE00 80.2.
tritanopia
Ratio 10.33:1, ΔE00 72.4.
The weakest of the three is tritanopia, where the two are ΔE00 72.4 apart against 96.6 for a trichromat — still clearly two colours.
Both colours have pages of their own: Master Sword Blue ·Black Sabbath · the same pair the other way round ·all pairs