Frozen Landscape

#aee4ff

A blue that is nearly neutral — the hue shows only against a true grey. It is very light — it works as a page background, not as text.

Hex

#aee4ff

RGB

174, 228, 255

OKLCh

89.1% 0.067 230.0°

CIELAB (D50)

87.5, -13.2, -19.1

What is true of this colour, and of no other

  • 2 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 18.0; on black, Lc -85.6. 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 18.1 and 17.9 and 17.5 — no red cone.

Text on this colour

White text

1.37:1 — fails AA

Black text

15.34:1 — passes AA

Black text is the better of the two at15.34:1. That is enough for body text.

As text on white, it needs to change

#4a7d95 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

#aee4ff

protanopia

#dfdfff · ΔE00 18.1

deuteranopia

#d6d6ff · ΔE00 17.9

tritanopia

#ccccff · ΔE00 17.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFairy Sparkles at ΔE00 1.559: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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