Kiss of the Scorpion

#dc331a

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

Hex

#dc331a

RGB

220, 51, 26

OKLCh

58.5% 0.208 31.5°

CIELAB (D50)

49.9, 64.3, 55.3

What is true of this colour, and of no other

  • 7 other named colours sit within ΔE00 2 of it.
  • It uses 92% 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 70.5; on black, Lc -31.1. 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 39.7 and 43.0 and 47.0 — no red cone.

Text on this colour

White text

4.63:1 — passes AA

Black text

4.53:1 — passes AA

White text is the better of the two at4.63:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#dc331a

protanopia

#5d5d1e · ΔE00 39.7

deuteranopia

#858500 · ΔE00 43.0

tritanopia

#a4a400 · ΔE00 47.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFatal Fury at ΔE00 0.712: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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