Up in the Air

#c2d5d8

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

#c2d5d8

RGB

194, 213, 216

OKLCh

86.0% 0.021 208.1°

CIELAB (D50)

83.9, -6.2, -3.8

What is true of this colour, and of no other

  • 18 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 16% 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 24.2; on black, Lc -78.9. 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 8.6 and 9.3 and 18.0 — no red cone.

Text on this colour

White text

1.52:1 — fails AA

Black text

13.80:1 — passes AA

Black text is the better of the two at13.80:1. That is enough for body text.

As text on white, it needs to change

#697a7d 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

#c2d5d8

protanopia

#d3d3d8 · ΔE00 8.6

deuteranopia

#d0d0d8 · ΔE00 9.3

tritanopia

#ccccff · ΔE00 18.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isScandinavian Sky at ΔE00 0.822: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Scandinavian SkyΔE00 0.822 · #c2d3d6
  • Cloudy SkyΔE00 0.929 · #c2d5da
  • Barest Hint of BlueΔE00 1.086 · #c5d9db
  • Little Boy BluΔE00 1.102 · #c7d8db
  • SkydivingΔE00 1.356 · #c6d6d7
  • Wind SpeedΔE00 1.39 · #bfd6d9
  • Wan BlueΔE00 1.438 · #c8d9dd
  • Light DewpointΔE00 1.46 · #c4dadd
  • WindyΔE00 1.498 · #bdd1d2
  • DetroitΔE00 1.553 · #bdd0d1
  • BalmyΔE00 1.576 · #c5d8de
  • Shhh…ΔE00 1.73 · #bbcfd4

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