Ghost Writer on Flash in the Pan

#bcb7ad on #ff9977

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

1.04:1

Fails AA

Not AAA (7:1). Swapping the two colours gives the same number — the ratio does not know which is the text.

APCA

Lc 0.0

Below Lc 15: the draft treats this as not text.

Too close to call.

Colour difference

ΔE00 22.7

different colours

Above 10 — related only in the sense that both are colours.

What the text colour has to become

#4a463e is the nearest colour of the same hue that passes AA on #ff9977, 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

Body text

Ratio 1.21:1, ΔE00 13.0.

deuteranopia

Body text

Ratio 1.03:1, ΔE00 16.5.

tritanopia

Body text

Ratio 1.25:1, ΔE00 21.5.

The weakest of the three is protanopia, where the two are ΔE00 13.0 apart against 22.7 for a trichromat — still clearly two colours.

Both colours have pages of their own: Ghost Writer ·Flash in the Pan · the same pair the other way round ·all pairs