Cayenne

#941100

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

Hex

#941100

RGB

148, 17, 0

OKLCh

42.6% 0.165 31.2°

CIELAB (D50)

31.8, 51.3, 46.0

What is true of this colour, and of no other

  • 9 other named colours sit within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 88.7; on black, Lc -13.5. 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 33.7 and 36.0 and 39.1 — no red cone.

Text on this colour

White text

8.98:1 — passes AA

Black text

2.34:1 — fails AA

White text is the better of the two at8.98:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#941100

protanopia

#373704 · ΔE00 33.7

deuteranopia

#555500 · ΔE00 36.0

tritanopia

#6c6c00 · ΔE00 39.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBrick Red at ΔE00 0.993: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Brick RedΔE00 0.993 · #8f1402
  • Dramatical RedΔE00 1.002 · #991100
  • Deep RedΔE00 1.395 · #9a0200
  • OU Crimson RedΔE00 1.417 · #990000
  • Crimson RedΔE00 1.493 · #980001
  • Totem PoleΔE00 1.606 · #991b07
  • Bloodthirsty VampireΔE00 1.674 · #9b0503
  • Cavalry BrownΔE00 1.788 · #990003
  • Dragon RedΔE00 1.932 · #9e0200
  • Cacodemon RedΔE00 2.124 · #9f0000
  • Uluru RedΔE00 2.244 · #921d0f
  • Red LeeverΔE00 2.323 · #881400

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