Red Robin

#7d4138

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

Hex

#7d4138

RGB

125, 65, 56

OKLCh

44.8% 0.085 29.7°

CIELAB (D50)

35.2, 25.8, 17.7

What is true of this colour, and of no other

  • 12 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses 47% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 86.8; on black, Lc -15.3. 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 24.7 and 26.0 and 32.0 — no red cone.

Text on this colour

White text

7.82:1 — passes AA

Black text

2.69:1 — fails AA

White text is the better of the two at7.82:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#7d4138

protanopia

#4b4b38 · ΔE00 24.7

deuteranopia

#585835 · ΔE00 26.0

tritanopia

#646400 · ΔE00 32.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRed Pepper at ΔE00 1.111: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Red PepperΔE00 1.111 · #7a3f38
  • Spiced AppleΔE00 1.273 · #7f403a
  • Country SleighΔE00 1.276 · #7e4337
  • Monterey ChestnutΔE00 1.599 · #7d4235
  • Raw CinnabarΔE00 1.611 · #7d403b
  • BoleΔE00 1.619 · #79443b
  • OutrageousΔE00 1.711 · #824438
  • Aged TeakΔE00 1.761 · #7a4134
  • DucalΔE00 1.8 · #763d35
  • Sweet SpiceberryΔE00 1.869 · #7b453e
  • Crown of ThornsΔE00 1.916 · #763c33
  • 1975 Earth RedΔE00 1.926 · #7b463b

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