Frozen Wave

#56acca

A cyan that is muted. It is light — black text sits on it comfortably, white text does not.

Hex

#56acca

RGB

86, 172, 202

OKLCh

70.3% 0.093 223.4°

CIELAB (D50)

65.9, -20.5, -23.7

What is true of this colour, and of no other

  • 5 other named colours sit within ΔE00 2 of it.
  • It uses 71% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 50.2; on black, Lc -51.7. 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 22.1 and 21.4 and 21.2 — no red cone.

Text on this colour

White text

2.58:1 — fails AA

Black text

8.15:1 — passes AA

Black text is the better of the two at8.15:1. That is enough for body text.

As text on white, it needs to change

#24809d 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

#56acca

protanopia

#a5a5ca · ΔE00 22.1

deuteranopia

#9999cb · ΔE00 21.4

tritanopia

#8a8aff · ΔE00 21.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCrystal Seas at ΔE00 1.2: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Crystal SeasΔE00 1.2 · #5dafce
  • Estero SkyΔE00 1.283 · #54a9ca
  • Maximum BlueΔE00 1.384 · #47abcc
  • Dragonfly BlueΔE00 1.577 · #45abca
  • Pottery BlueΔE00 1.827 · #54a6c2
  • Blue MistΔE00 2.062 · #5bacc3
  • EpimetheusΔE00 2.174 · #4bb2d5
  • Summer AirΔE00 2.174 · #3fafcf
  • SantoriniΔE00 2.186 · #41b0d0
  • Blue TopazΔE00 2.188 · #65aece
  • FlywayΔE00 2.264 · #5db3d4
  • Blue MartiniΔE00 2.34 · #52b4d3

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