Ariel

#aed7ea

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

#aed7ea

RGB

174, 215, 234

OKLCh

85.6% 0.051 227.8°

CIELAB (D50)

83.5, -10.8, -14.0

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 55% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 24.6; on black, Lc -78.5. 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 15.7 and 16.3 and 16.1 — no red cone.

Text on this colour

White text

1.53:1 — fails AA

Black text

13.71:1 — passes AA

Black text is the better of the two at13.71:1. That is enough for body text.

As text on white, it needs to change

#567c8d 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

#aed7ea

protanopia

#d3d3ea · ΔE00 15.7

deuteranopia

#cccceb · ΔE00 16.3

tritanopia

#c4c4ff · ΔE00 16.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Feather at ΔE00 0.62: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Blue FeatherΔE00 0.62 · #aed9ec
  • MonacoΔE00 0.818 · #abd4e6
  • Something BlueΔE00 1.085 · #b0d6e6
  • New PrinceΔE00 1.15 · #b1d9e9
  • Soap BubbleΔE00 1.16 · #b2dcef
  • Seashore DreamsΔE00 1.363 · #b5dcef
  • Blue RefrainΔE00 1.437 · #b0d8e7
  • Light Bobby BlueΔE00 1.441 · #add2e3
  • Laissez-FaireΔE00 1.488 · #a6d3e6
  • LongitudeΔE00 1.498 · #add5e4
  • Whimsy BlueΔE00 1.591 · #b0dced
  • Minified BlueΔE00 1.702 · #b3dbea

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