HueComb

Ethereal Moonlight

#d5e4ec

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

#d5e4ec

RGB

213, 228, 236

OKLCh

91.0% 0.019 230.7°

CIELAB (D50)

89.6, -4.0, -5.7

What is true of this colour, and of no other

  • 29 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 36% 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 14.9; on black, Lc -88.8. 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 7.1 and 7.6 and 12.6 — no red cone.

Text on this colour

White text

1.30:1 — fails AA

Black text

16.14:1 — passes AA

Black text is the better of the two at16.14:1. That is enough for body text.

As text on white, it needs to change

#6b7980 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

#d5e4ec

protanopia

#e2e2ec · ΔE00 7.1

deuteranopia

#e0e0ec · ΔE00 7.6

tritanopia

#ddddff · ΔE00 12.6

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDream Blue at ΔE00 0.442: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Dream BlueΔE00 0.442 · #d7e6ee
  • Pale Grey BlueΔE00 0.777 · #d4e2eb
  • First LightΔE00 0.965 · #d9e6ee
  • Lupin GreyΔE00 0.989 · #d1e0e9
  • Snow ShadowΔE00 1.028 · #d7e4ed
  • Pattens BlueΔE00 1.204 · #d3e5ef
  • Mystic HarbourΔE00 1.208 · #d2e4ee
  • GoddessΔE00 1.27 · #d0e1e8
  • White SeaΔE00 1.328 · #d7e5ea
  • Snowdrift GlowΔE00 1.331 · #d6e5f0
  • Arctic BlizzardΔE00 1.333 · #d9e5eb
  • DreamstressΔE00 1.373 · #d6e5ea

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