Pale King’s Blue

#abf5ed

A cyan that is nearly neutral — the hue shows only against a true grey. It is very light — it works as a page background, not as text.

Hex

#abf5ed

RGB

171, 245, 237

OKLCh

92.0% 0.074 187.5°

CIELAB (D50)

91.5, -25.0, -3.9

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 uses 60% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 11.5; on black, Lc -92.5. 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 20.0 and 22.5 and 25.7 — no red cone.

Text on this colour

White text

1.23:1 — fails AA

Black text

17.02:1 — passes AA

Black text is the better of the two at17.02:1. That is enough for body text.

As text on white, it needs to change

#39827c 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

#abf5ed

protanopia

#eeeeed · ΔE00 20.0

deuteranopia

#e3e3ee · ΔE00 22.5

tritanopia

#d5d5ff · ΔE00 25.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isWinter Meadow at ΔE00 2.503: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

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