On Cloud Nine

#c2e7e8

A cyan 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

#c2e7e8

RGB

194, 231, 232

OKLCh

90.2% 0.039 198.5°

CIELAB (D50)

89.0, -12.3, -4.7

What is true of this colour, and of no other

  • 25 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 29% 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 15.9; on black, Lc -87.8. 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 14.0 and 15.2 and 20.3 — no red cone.

Text on this colour

White text

1.32:1 — fails AA

Black text

15.89:1 — passes AA

Black text is the better of the two at15.89:1. That is enough for body text.

As text on white, it needs to change

#5b7d7e 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

#c2e7e8

protanopia

#e3e3e8 · ΔE00 14.0

deuteranopia

#dddde9 · ΔE00 15.2

tritanopia

#d6d6ff · ΔE00 20.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPale Seafoam at ΔE00 0.267: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Pale SeafoamΔE00 0.267 · #c3e7e8
  • Light OpaleΔE00 0.616 · #c1e8ea
  • SwimmingΔE00 0.721 · #c2e5e5
  • Silent BreezeΔE00 0.905 · #c6eaec
  • Saline WaterΔE00 0.968 · #c5e8e7
  • Light VandamintΔE00 1.022 · #bfe7ea
  • Egg BlueΔE00 1.228 · #c1e7eb
  • Launderette BlueΔE00 1.254 · #c0e7eb
  • Blue KarmaΔE00 1.324 · #bce6e8
  • Light Daly WatersΔE00 1.367 · #c2e4e7
  • Cold Well WaterΔE00 1.422 · #c1e2e3
  • Yù Shí Bái WhiteΔE00 1.474 · #c0e2e1

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