Nebulous

#c4b9b8

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

#c4b9b8

RGB

196, 185, 184

OKLCh

79.5% 0.013 23.7°

CIELAB (D50)

76.0, 3.9, 2.0

What is true of this colour, and of no other

11 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 11% 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 36.5; on black, Lc -65.9. 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 5.7 and 6.3 and 18.7 — no red cone.

Text on this colour

White text

1.91:1 — fails AA

Black text

10.98:1 — passes AA

Black text is the better of the two at10.98:1. That is enough for body text.

As text on white, it needs to change

#7f7474 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

#c4b9b8

protanopia

#babab8 · ΔE00 5.7

deuteranopia

#bcbcb8 · ΔE00 6.3

tritanopia

#bfbf90 · ΔE00 18.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isElegant Ice at ΔE00 0.502: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

Elegant IceΔE00 0.502 · #c4b9b7
Studio MauveΔE00 0.886 · #c6b9b8
Queen Anne LilacΔE00 1.132 · #c0b6b4
Japanese PoetΔE00 1.186 · #c4bab7
Pink SwanΔE00 1.614 · #bfb3b2
Nantucket MistΔE00 1.651 · #cabfbf
Mauve StoneΔE00 1.667 · #c4bab6
Georgian PinkΔE00 1.826 · #c6b8b4
WallisΔE00 1.927 · #c6bdbf
RubidiumΔE00 1.973 · #c5b9b4
Winter CalmΔE00 1.991 · #bdb5b3
Young FawnΔE00 2.059 · #c3b4b3

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