HueComb

On Thin Ice

#d1e8f1

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

#d1e8f1

RGB

209, 232, 241

OKLCh

91.7% 0.027 223.2°

CIELAB (D50)

90.5, -6.5, -7.1

What is true of this colour, and of no other

  • 12 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 49% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 13.4; on black, Lc -90.4. 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 10.1 and 10.8 and 14.3 — no red cone.

Text on this colour

White text

1.27:1 — fails AA

Black text

16.52:1 — passes AA

Black text is the better of the two at16.52:1. That is enough for body text.

As text on white, it needs to change

#657a82 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

#d1e8f1

protanopia

#e6e6f1 · ΔE00 10.1

deuteranopia

#e2e2f1 · ΔE00 10.8

tritanopia

#ddddff · ΔE00 14.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSpacious Skies at ΔE00 0.865: below 1.0 — an ordinary observer cannot tell these apart, even side by side. 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.