HueComb

Starship Tonic

#cce7e8

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

#cce7e8

RGB

204, 231, 232

OKLCh

90.9% 0.029 199.4°

CIELAB (D50)

89.7, -9.0, -3.7

What is true of this colour, and of no other

  • 21 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 24% 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 14.8; on black, Lc -89.0. 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 11.1 and 12.1 and 18.0 — no red cone.

Text on this colour

White text

1.30:1 — fails AA

Black text

16.16:1 — passes AA

Black text is the better of the two at16.16:1. That is enough for body text.

As text on white, it needs to change

#637b7c 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

#cce7e8

protanopia

#e4e4e8 · ΔE00 11.1

deuteranopia

#e0e0e9 · ΔE00 12.1

tritanopia

#dadaff · ΔE00 18.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isVentilated at ΔE00 0.842: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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