Muddy

#a13905

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

Hex

#a13905

RGB

161, 57, 5

OKLCh

48.8% 0.148 40.7°

CIELAB (D50)

39.4, 42.5, 49.5

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • 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 82.4; on black, Lc -19.5. 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 30.9 and 32.4 and 35.0 — no red cone.

Text on this colour

White text

6.77:1 — passes AA

Black text

3.10:1 — large text only

White text is the better of the two at6.77:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#a13905

protanopia

#4e4e09 · ΔE00 30.9

deuteranopia

#666600 · ΔE00 32.4

tritanopia

#7b7b00 · ΔE00 35.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRust at ΔE00 1.668: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. 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.