HueComb

Shore

#81d5c6

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

Hex

#81d5c6

RGB

129, 213, 198

OKLCh

81.5% 0.085 181.4°

CIELAB (D50)

79.6, -29.3, -1.0

What is true of this colour, and of no other

  • 13 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 58% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 30.6; on black, Lc -72.1. 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 21.0 and 23.2 and 30.7 — no red cone.

Text on this colour

White text

1.71:1 — fails AA

Black text

12.27:1 — passes AA

Black text is the better of the two at12.27:1. That is enough for body text.

As text on white, it needs to change

#2c8477 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

#81d5c6

protanopia

#cecec6 · ΔE00 21.0

deuteranopia

#c1c1c8 · ΔE00 23.2

tritanopia

#b2b2ff · ΔE00 30.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMintos at ΔE00 1.333: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. 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.