HueComb

Once Bitten

#bd2f10

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

Hex

#bd2f10

RGB

189, 47, 16

OKLCh

52.6% 0.183 33.2°

CIELAB (D50)

43.3, 55.9, 51.5

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 95% 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 77.9; on black, Lc -23.9. 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 36.4 and 39.1 and 42.9 — no red cone.

Text on this colour

White text

5.87:1 — passes AA

Black text

3.58:1 — large text only

White text is the better of the two at5.87:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#bd2f10

protanopia

#515114 · ΔE00 36.4

deuteranopia

#727200 · ΔE00 39.1

tritanopia

#8d8d00 · ΔE00 42.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRed Gravy at ΔE00 0.975: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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