HueComb

Polar Bear in a Blizzard

#fcffff

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

#fcffff

RGB

252, 255, 255

OKLCh

99.8% 0.003 197.1°

CIELAB (D50)

99.8, -1.0, -0.4

What is true of this colour, and of no other

  • 13 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 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 -107.5. 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.
  • All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.

Text on this colour

White text

1.01:1 — fails AA

Black text

20.89:1 — passes AA

Black text is the better of the two at20.89:1. That is enough for body text.

As text on white, it needs to change

#757777 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

#fcffff

protanopia

#ffffff · ΔE00 1.6

deuteranopia

#fefeff · ΔE00 1.7

tritanopia

#fefeff · ΔE00 1.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isEmptiness at ΔE00 1.106: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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