Heavy Cream on Intrigue Red
#e8ddc6 on #b24648
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
4.04:1
Large text only
Not AAA (7:1). Swapping the two colours gives the same number — the ratio does not know which is the text.
APCA
Lc -60.4
Clears Lc 60 — headlines and other larger text.
Light text on a darker ground — the negative sign is the polarity.
Colour difference
ΔE00 43.0
different colours
Above 10 — related only in the sense that both are colours.
What the text colour has to become
#f4e9d1 is the nearest colour of the same hue that passes AA on #b24648, at 4.50:1. Only the lightness moved — which is the point: your colour stays recognisably your colour.
And to someone missing a cone
protanopia
Ratio 5.08:1, ΔE00 42.0.
deuteranopia
Ratio 3.64:1, ΔE00 33.1.
tritanopia
Ratio 2.77:1, ΔE00 26.0.
The weakest of the three is tritanopia, where the two are ΔE00 26.0 apart against 43.0 for a trichromat — still clearly two colours.
Both colours have pages of their own: Heavy Cream ·Intrigue Red · the same pair the other way round ·all pairs