HueComb

Broad Daylight

#bbddff

A blue 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

#bbddff

RGB

187, 221, 255

OKLCh

88.4% 0.059 248.5°

CIELAB (D50)

86.5, -6.0, -20.5

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • 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 19.8; on black, Lc -83.7. 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 12.6 and 12.2 and 11.8 — no red cone.

Text on this colour

White text

1.41:1 — fails AA

Black text

14.90:1 — passes AA

Black text is the better of the two at14.90:1. That is enough for body text.

As text on white, it needs to change

#5b7a98 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

#bbddff

protanopia

#dadaff · ΔE00 12.6

deuteranopia

#d4d4ff · ΔE00 12.2

tritanopia

#cdcdff · ΔE00 11.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDithered Sky at ΔE00 0.846: 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.