HueComb

Poseidon Jr.

#66eeee

A cyan that is muted. It is very light — it works as a page background, not as text.

Hex

#66eeee

RGB

102, 238, 238

OKLCh

87.5% 0.118 195.2°

CIELAB (D50)

86.7, -38.5, -11.8

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 79% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 19.0; on black, Lc -84.5. 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 25.9 and 27.0 and 30.2 — no red cone.

Text on this colour

White text

1.40:1 — fails AA

Black text

15.03:1 — passes AA

Black text is the better of the two at15.03:1. That is enough for body text.

As text on white, it needs to change

#008585 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.

Try it against your own background

The same colour, with one cone missing

As you see it

#66eeee

protanopia

#e4e4ee · ΔE00 25.9

deuteranopia

#d2d2f0 · ΔE00 27.0

tritanopia

#bbbbff · ΔE00 30.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDead Sea at ΔE00 1.358: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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