Cooler Than Ever

#77bbff

A blue that is muted. It is light — black text sits on it comfortably, white text does not.

Hex

#77bbff

RGB

119, 187, 255

OKLCh

77.4% 0.120 249.6°

CIELAB (D50)

73.4, -7.9, -40.9

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 39.3; on black, Lc -63.0. 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 15.9 and 15.2 and 15.2 — no red cone.

Text on this colour

White text

2.03:1 — fails AA

Black text

10.34:1 — passes AA

Black text is the better of the two at10.34:1. That is enough for body text.

As text on white, it needs to change

#377aba 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

#77bbff

protanopia

#b5b5ff · ΔE00 15.9

deuteranopia

#ababff · ΔE00 15.2

tritanopia

#9e9eff · 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 isGreen Darner Tail at ΔE00 0.554: 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.