HueComb

Fish Boy

#11dddd

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

Hex

#11dddd

RGB

17, 221, 221

OKLCh

81.3% 0.137 194.8°

CIELAB (D50)

79.8, -45.0, -13.3

What is true of this colour, and of no other

  • No other named colour in the set is within ΔE00 2 of it — it stands alone.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 29.5; on black, Lc -73.4. 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 26.9 and 28.6 and 34.0 — no red cone.

Text on this colour

White text

1.69:1 — fails AA

Black text

12.41:1 — passes AA

Black text is the better of the two at12.41:1. 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

#11dddd

protanopia

#d2d2dd · ΔE00 26.9

deuteranopia

#bebedf · ΔE00 28.6

tritanopia

#a4a4ff · ΔE00 34.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isNeon Nazar at ΔE00 2.959: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

  • Neon NazarΔE00 2.959 · #4fdce1
  • Medium TurquoiseΔE00 3.674 · #48d1cc
  • Jade GlassΔE00 3.699 · #00ced1
  • Blue MartinaΔE00 3.739 · #1fcecb
  • Cold Light of DayΔE00 3.798 · #00eeee
  • PluviophileΔE00 3.8 · #66dddd
  • Phosphorescent BlueΔE00 3.804 · #11eeee
  • Neon LagoonΔE00 3.847 · #09cdcd
  • Bright TurquoiseΔE00 3.899 · #08e8de
  • Hammam BlueΔE00 4.044 · #65dcd6
  • Mermaid NetΔE00 4.075 · #22cccc
  • Aztec TurquoiseΔE00 4.08 · #00d6e2

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