Fossil Stone

#e3ddcc

A neutral that has no useful hue — it reads as a grey. It is very light — it works as a page background, not as text.

Hex

#e3ddcc

RGB

227, 221, 204

OKLCh

89.8% 0.024 90.8°

CIELAB (D50)

88.3, -0.0, 9.1

What is true of this colour, and of no other

  • 88 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 18% 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 17.5; on black, Lc -86.1. 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.
  • tritanopia shifts it by ΔE00 8.5 — no blue cone.

Text on this colour

White text

1.36:1 — fails AA

Black text

15.48:1 — passes AA

Black text is the better of the two at15.48:1. That is enough for body text.

As text on white, it needs to change

#7c7667 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

#e3ddcc

protanopia

#dedecc · ΔE00 3.1

deuteranopia

#dfdfcc · ΔE00 3.2

tritanopia

#e0e0b6 · ΔE00 8.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isWinter Frost at ΔE00 0.225: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Winter FrostΔE00 0.225 · #e4decd
  • Catacomb BoneΔE00 0.441 · #e2dccc
  • Pueblo WhiteΔE00 0.575 · #e5dfcd
  • Vintage LinenΔE00 0.582 · #e3dcca
  • LitewoodΔE00 0.61 · #e5dfcf
  • Confident WhiteΔE00 0.646 · #e4dfce
  • Frankly EarnestΔE00 0.647 · #e2dbca
  • Quail EggΔE00 0.788 · #e3ddce
  • Peace & QuietΔE00 0.8 · #e0dac8
  • ArrowrooteΔE00 0.831 · #e4decf
  • SedonaΔE00 0.878 · #e7e0cf
  • Hazelnut CreamΔE00 0.883 · #e6dfcf

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