HueComb

Frostbite

#acfffc

A cyan that is muted. It is very light — it works as a page background, not as text.

Hex

#acfffc

RGB

172, 255, 252

OKLCh

94.6% 0.081 193.0°

CIELAB (D50)

94.6, -26.6, -7.0

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 0.0; on black, Lc -98.3. 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 21.9 and 23.9 and 25.3 — no red cone.

Text on this colour

White text

1.14:1 — fails AA

Black text

18.46:1 — passes AA

Black text is the better of the two at18.46:1. That is enough for body text.

As text on white, it needs to change

#2d8381 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

#acfffc

protanopia

#f7f7fc · ΔE00 21.9

deuteranopia

#ebebfd · ΔE00 23.9

tritanopia

#dbdbff · ΔE00 25.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isAffen Turquoise at ΔE00 1.083: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. 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.