Pale Sky

#bdf6fe

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

#bdf6fe

RGB

189, 246, 254

OKLCh

93.7% 0.058 206.9°

CIELAB (D50)

93.2, -17.3, -10.0

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 95% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
  • As text on white it measures APCA Lc 8.7; on black, Lc -95.5. 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 18.9 and 20.2 and 21.3 — no red cone.

Text on this colour

White text

1.18:1 — fails AA

Black text

17.78:1 — passes AA

Black text is the better of the two at17.78:1. That is enough for body text.

As text on white, it needs to change

#497f86 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

#bdf6fe

protanopia

#f0f0fe · ΔE00 18.9

deuteranopia

#e7e7ff · ΔE00 20.2

tritanopia

#dcdcff · ΔE00 21.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFriendly Frost at ΔE00 1.931: 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.