Mushroom

#bdaca3

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

#bdaca3

RGB

189, 172, 163

OKLCh

75.6% 0.024 49.8°

CIELAB (D50)

71.6, 5.2, 7.0

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 only 15% 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 43.1; on black, Lc -59.1. 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.
protanopia and deuteranopia and tritanopia shift it by ΔE00 9.1 and 9.8 and 23.2 — no red cone.

Text on this colour

White text

2.19:1 — fails AA

Black text

9.59:1 — passes AA

Black text is the better of the two at9.59:1. That is enough for body text.

As text on white, it needs to change

#83746b 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

#bdaca3

protanopia

#aeaea3 · ΔE00 9.1

deuteranopia

#b1b1a3 · ΔE00 9.8

tritanopia

#b5b54e · ΔE00 23.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isThumper at ΔE00 0.49: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

ThumperΔE00 0.49 · #bdada4
ClassicΔE00 0.564 · #bbaaa1
Crushed StoneΔE00 1.058 · #bcaa9f
Turning TablesΔE00 1.115 · #b9aaa1
BarrenΔE00 1.346 · #b9aba3
Mauve NymphΔE00 1.499 · #c0ada6
PrestigeΔE00 1.686 · #b8a7a0
Riveter RoseΔE00 1.713 · #b7a9a2
MauvetteΔE00 1.765 · #c4b2a9
Chelsea MauveΔE00 1.772 · #beac9f
Temperate TaupeΔE00 1.876 · #bfb1aa
Embarrassed ShadowΔE00 1.998 · #bbaaa5

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