Light Lilac

#dcc6d2

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

#dcc6d2

RGB

220, 198, 210

OKLCh

84.8% 0.029 343.7°

CIELAB (D50)

82.0, 9.5, -3.0

What is true of this colour, and of no other

10 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 28% 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 27.4; on black, Lc -75.6. 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 9.6 and 10.0 and 33.3 — no red cone.

Text on this colour

White text

1.61:1 — fails AA

Black text

13.05:1 — passes AA

Black text is the better of the two at13.05:1. That is enough for body text.

As text on white, it needs to change

#85717c 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

#dcc6d2

protanopia

#c9c9d2 · ΔE00 9.6

deuteranopia

#cdcdd2 · ΔE00 10.0

tritanopia

#d1d179 · ΔE00 33.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMauve Organdie at ΔE00 0.648: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

Mauve OrgandieΔE00 0.648 · #d9c4d0
Tip ToesΔE00 1.067 · #d8c2cd
Mint Blossom RoseΔE00 1.095 · #d7c2ce
Kellie BelleΔE00 1.655 · #dec7cf
French LavenderΔE00 1.719 · #dfc9d1
Lilac LaneΔE00 1.803 · #dfcbda
Creamy MauveΔE00 1.877 · #dccad8
Old Mission PinkΔE00 1.886 · #d8c2ca
Sweet and SassyΔE00 1.927 · #e1c9d1
Cassia BudsΔE00 1.944 · #e0cdda
BassinetΔE00 2.181 · #d3c1cb
PrimΔE00 2.255 · #e2cdd5

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