Shiitake

#a5988a

A neutral that has no useful hue — it reads as a grey. It is light — black text sits on it comfortably, white text does not.

Hex

#a5988a

RGB

165, 152, 138

OKLCh

68.7% 0.025 69.5°

CIELAB (D50)

63.7, 3.2, 9.2

What is true of this colour, and of no other

  • 21 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 17% 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 54.1; on black, Lc -47.7. 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 7.2 and 7.6 and 18.4 — no red cone.

Text on this colour

White text

2.82:1 — fails AA

Black text

7.46:1 — passes AA

Black text is the better of the two at7.46:1. That is enough for body text.

As text on white, it needs to change

#817567 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

#a5988a

protanopia

#9a9a8a · ΔE00 7.2

deuteranopia

#9c9c8a · ΔE00 7.6

tritanopia

#9f9f49 · ΔE00 18.4

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isStudio Taupe at ΔE00 0.553: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Studio TaupeΔE00 0.553 · #a59789
  • TuffetΔE00 0.6 · #a59788
  • Sorrel FeltΔE00 0.754 · #a49688
  • Warm Waterlogged Lab CoatΔE00 0.852 · #a89a8c
  • Time CapsuleΔE00 0.888 · #a59888
  • Smoking MirrorΔE00 0.959 · #a29587
  • Warm StoneΔE00 1.062 · #a79a8a
  • Earl GreyΔE00 1.225 · #a6978a
  • Parador InnΔE00 1.276 · #a99a8a
  • ZorbaΔE00 1.298 · #a29589
  • CobblestoneΔE00 1.396 · #a89a8e
  • DiversionΔE00 1.497 · #a99a89

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