Crystal Lake

#88b5c4

A cyan that is nearly neutral — the hue shows only against a true grey. It is light — black text sits on it comfortably, white text does not.

Hex

#88b5c4

RGB

136, 181, 196

OKLCh

74.6% 0.052 220.4°

CIELAB (D50)

70.8, -12.8, -12.8

What is true of this colour, and of no other

  • 8 other named colours sit within ΔE00 2 of it.
  • It uses only 39% 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 43.7; on black, Lc -58.4. 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 16.9 and 17.8 and 17.3 — no red cone.

Text on this colour

White text

2.22:1 — fails AA

Black text

9.45:1 — passes AA

Black text is the better of the two at9.45:1. That is enough for body text.

As text on white, it needs to change

#527d8b 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

#88b5c4

protanopia

#b1b1c4 · ΔE00 16.9

deuteranopia

#a9a9c5 · ΔE00 17.8

tritanopia

#a1a1ff · ΔE00 17.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPond Blue at ΔE00 0.819: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Pond BlueΔE00 0.819 · #8bb6c6
  • Thistleblossom Soft BlueΔE00 1.281 · #8ab3bf
  • Blue Bird MorningΔE00 1.612 · #86b8cb
  • Blue EchoΔE00 1.686 · #8dbbc9
  • Sea AngelΔE00 1.768 · #8bb8c3
  • Open SeasΔE00 1.854 · #83afbc
  • Trisha’s EyesΔE00 1.877 · #8eb9c4
  • HeavenlyΔE00 1.993 · #7eb2c5
  • Sebastian InletΔE00 2.221 · #84aeba
  • Tennis BlueΔE00 2.348 · #7cb5c6
  • Resolute BlueΔE00 2.479 · #85b0c4
  • Bermuda BlueΔE00 2.497 · #8cb1c2

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