High Sierra

#cedee2

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

#cedee2

RGB

206, 222, 226

OKLCh

89.0% 0.018 214.4°

CIELAB (D50)

87.3, -5.0, -3.9

What is true of this colour, and of no other

  • 40 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 20% 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 18.7; on black, Lc -84.8. 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 7.5 and 8.0 and 15.6 — no red cone.

Text on this colour

White text

1.38:1 — fails AA

Black text

15.17:1 — passes AA

Black text is the better of the two at15.17:1. That is enough for body text.

As text on white, it needs to change

#6b797d 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

#cedee2

protanopia

#dcdce2 · ΔE00 7.5

deuteranopia

#d9d9e2 · ΔE00 8.0

tritanopia

#d6d6ff · ΔE00 15.6

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCool Sky at ΔE00 0.551: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Cool SkyΔE00 0.551 · #cfe0e4
  • Valley of TearsΔE00 0.815 · #d1e1e4
  • Reflection PoolΔE00 0.834 · #cadbdf
  • Sky Light ViewΔE00 0.92 · #cadade
  • Sea Foam MistΔE00 1.023 · #cbdce2
  • NymphaeaceaeΔE00 1.027 · #cee0e3
  • Beach House BlueΔE00 1.062 · #ccdcde
  • Salty VapourΔE00 1.102 · #cbdee3
  • EmbellishmentΔE00 1.126 · #cbdee2
  • Wan BlueΔE00 1.266 · #c8d9dd
  • AloofΔE00 1.277 · #d4e2e6
  • Open SkiesΔE00 1.313 · #d0e2e8

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