HueComb

Dropped Brick

#bb3300

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

Hex

#bb3300

RGB

187, 51, 0

OKLCh

52.6% 0.179 36.2°

CIELAB (D50)

43.4, 53.8, 56.3

What is true of this colour, and of no other

  • No other named colour in the set is within ΔE00 2 of it — it stands alone.
  • 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 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 35.7 and 37.2 and 40.8 — no red cone.

Text on this colour

White text

5.86:1 — passes AA

Black text

3.59:1 — large text only

White text is the better of the two at5.86:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#bb3300

protanopia

#525206 · ΔE00 35.7

deuteranopia

#727200 · ΔE00 37.2

tritanopia

#8c8c00 · ΔE00 40.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMartian Ironcrust at ΔE00 2.445: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

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