HueComb

Puddle Jumper

#6a8389

A cyan that is nearly neutral — the hue shows only against a true grey. It is mid — the hardest range to put text on, either colour struggles.

Hex

#6a8389

RGB

106, 131, 137

OKLCh

59.3% 0.030 213.9°

CIELAB (D50)

52.9, -8.2, -6.4

What is true of this colour, and of no other

  • 5 other named colours sit within ΔE00 2 of it.
  • It uses only 29% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
  • As text on white it measures APCA Lc 67.5; on black, Lc -34.2. 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 11.4 and 12.3 and 18.3 — no red cone.

Text on this colour

White text

4.02:1 — large text only

Black text

5.22:1 — passes AA

Black text is the better of the two at5.22:1. That is enough for body text.

As text on white, it needs to change

#627b81 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

#6a8389

protanopia

#808089 · ΔE00 11.4

deuteranopia

#7c7c89 · ΔE00 12.3

tritanopia

#7777bb · ΔE00 18.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Thunder at ΔE00 1.597: 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.