Akari Red

#c90b42

A pink that is saturated. It is mid — the hardest range to put text on, either colour struggles.

Hex

#c90b42

RGB

201, 11, 66

OKLCh

53.4% 0.209 15.7°

CIELAB (D50)

43.6, 67.7, 25.6

What is true of this colour, and of no other

  • 14 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses 98% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
  • As text on white it measures APCA Lc 76.7; on black, Lc -25.0. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 32.3 and 44.3 and 55.0 — no red cone.

Text on this colour

White text

5.82:1 — passes AA

Black text

3.61:1 — large text only

White text is the better of the two at5.82:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#c90b42

protanopia

#4a4a43 · ΔE00 32.3

deuteranopia

#747439 · ΔE00 44.3

tritanopia

#939300 · ΔE00 55.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCrucified Red at ΔE00 0.765: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.