HueComb

Patina

#66d0c0

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

Hex

#66d0c0

RGB

102, 208, 192

OKLCh

79.0% 0.101 182.5°

CIELAB (D50)

76.9, -35.1, -1.9

What is true of this colour, and of no other

  • 7 other named colours sit within ΔE00 2 of it.
  • It uses 72% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 34.6; on black, Lc -67.9. 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 22.5 and 25.0 and 33.2 — no red cone.

Text on this colour

White text

1.85:1 — fails AA

Black text

11.35:1 — passes AA

Black text is the better of the two at11.35:1. That is enough for body text.

As text on white, it needs to change

#008678 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

#66d0c0

protanopia

#c8c8c0 · ΔE00 22.5

deuteranopia

#b9b9c2 · ΔE00 25.0

tritanopia

#a7a7ff · ΔE00 33.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDip in the Pool at ΔE00 0.723: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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