Clear Sky

#8eccfe

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

Hex

#8eccfe

RGB

142, 204, 254

OKLCh

82.2% 0.095 243.6°

CIELAB (D50)

79.2, -10.8, -31.3

What is true of this colour, and of no other

  • 3 other named colours sit within ΔE00 2 of it.
  • It uses 98% 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 30.9; on black, Lc -71.9. 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 16.5 and 15.6 and 15.2 — no red cone.

Text on this colour

White text

1.72:1 — fails AA

Black text

12.22:1 — passes AA

Black text is the better of the two at12.22:1. That is enough for body text.

As text on white, it needs to change

#3f7caa 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

#8eccfe

protanopia

#c6c6fe · ΔE00 16.5

deuteranopia

#bdbdff · ΔE00 15.6

tritanopia

#b1b1ff · ΔE00 15.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPlatonic Blue at ΔE00 0.93: below 1.0 — an ordinary observer cannot tell these apart, even side by side. 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.