HueComb

Moon Rock

#897d76

A neutral that has no useful hue — it reads as a grey. It is mid — the hardest range to put text on, either colour struggles.

Hex

#897d76

RGB

137, 125, 118

OKLCh

59.8% 0.018 52.4°

CIELAB (D50)

53.3, 3.8, 5.6

What is true of this colour, and of no other

  • 13 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 only 12% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
  • As text on white it measures APCA Lc 67.3; on black, Lc -34.4. 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 7.0 and 7.5 and 19.9 — no red cone.

Text on this colour

White text

3.99:1 — large text only

Black text

5.26:1 — passes AA

Black text is the better of the two at5.26:1. That is enough for body text.

As text on white, it needs to change

#80746e is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#897d76

protanopia

#7e7e76 · ΔE00 7.0

deuteranopia

#818176 · ΔE00 7.5

tritanopia

#83833c · ΔE00 19.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isHurricane at ΔE00 0.672: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • HurricaneΔE00 0.672 · #8b7e77
  • Bleached BarkΔE00 0.756 · #8b7f78
  • Revere GreigeΔE00 0.992 · #8a7c75
  • Vulcan MudΔE00 1.174 · #897f79
  • Spacious GreyΔE00 1.279 · #877d75
  • Pre-RaphaeliteΔE00 1.32 · #8b7f7a
  • Poised TaupeΔE00 1.332 · #8c7e78
  • Eastlake LavenderΔE00 1.54 · #887d79
  • Susu GreenΔE00 1.698 · #887f7a
  • Spalding GreyΔE00 1.761 · #8d7f75
  • TsarΔE00 1.782 · #8b7f7b
  • SiltΔE00 1.924 · #8a7d72

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