Bath Bubbles

#e6f2ea

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

#e6f2ea

RGB

230, 242, 234

OKLCh

95.0% 0.017 156.9°

CIELAB (D50)

94.4, -5.2, 2.4

What is true of this colour, and of no other

29 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 21% 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 0.0; on black, Lc -97.4. 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 5.5 and 5.8 and 13.5 — no red cone.

Text on this colour

White text

1.15:1 — fails AA

Black text

18.25:1 — passes AA

Black text is the better of the two at18.25:1. That is enough for body text.

As text on white, it needs to change

#6f7972 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

#e6f2ea

protanopia

#f1f1ea · ΔE00 5.5

deuteranopia

#efefea · ΔE00 5.8

tritanopia

#ececff · ΔE00 13.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSnow Crystal Green at ΔE00 0.422: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

Snow Crystal GreenΔE00 0.422 · #e4f0e8
Icy PistachioΔE00 0.424 · #e6f2e9
DewΔE00 0.589 · #e7f2e9
Opera GlassΔE00 0.889 · #e5f1eb
Mountain Crystal SilverΔE00 0.89 · #e2efe8
AstronomerΔE00 0.944 · #e8f2eb
Cool IcicleΔE00 0.985 · #e1eee6
Stone PathΔE00 1.122 · #e4efe5
Molten IceΔE00 1.128 · #e1ede6
Northern LightsΔE00 1.245 · #e6f0ea
PolarΔE00 1.31 · #e5f2e7
Soft PetalsΔE00 1.312 · #ebf8ef

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