HueComb

Ice Dagger

#cee5df

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

#cee5df

RGB

206, 229, 223

OKLCh

90.3% 0.026 178.3°

CIELAB (D50)

89.1, -8.7, 0.2

What is true of this colour, and of no other

  • 20 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 15.9; on black, Lc -87.9. 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 9.6 and 10.3 and 19.5 — no red cone.

Text on this colour

White text

1.32:1 — fails AA

Black text

15.90:1 — passes AA

Black text is the better of the two at15.90:1. That is enough for body text.

As text on white, it needs to change

#667b76 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

#cee5df

protanopia

#e3e3df · ΔE00 9.6

deuteranopia

#dfdfdf · ΔE00 10.3

tritanopia

#dadaff · ΔE00 19.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isLight Picnic Bay at ΔE00 0.545: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Light Picnic BayΔE00 0.545 · #cde5de
  • Ice BombΔE00 0.818 · #cce2dd
  • Dew Not DisturbΔE00 0.875 · #cee3dc
  • Rio SkyΔE00 1.014 · #cae1da
  • Aqua GlassΔE00 1.14 · #d2e8e0
  • Big SkyΔE00 1.242 · #cde2de
  • Melting IceΔE00 1.266 · #cae1d9
  • Hushed GreenΔE00 1.281 · #c8e0db
  • Ulthuan GreyΔE00 1.478 · #c7e0d9
  • Moody MistΔE00 1.521 · #cae2d9
  • Icy GlacierΔE00 1.713 · #d4eae1
  • Adriatic MistΔE00 1.758 · #d3ece4

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