Fresh Blue of Bel Air

#069af3

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

Hex

#069af3

RGB

6, 154, 243

OKLCh

66.4% 0.168 245.7°

CIELAB (D50)

60.5, -9.3, -54.9

What is true of this colour, and of no other

  • 4 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 56.4; on black, Lc -45.4. 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 19.9 and 19.5 and 20.5 — no red cone.

Text on this colour

White text

3.03:1 — large text only

Black text

6.92:1 — passes AA

Black text is the better of the two at6.92:1. That is enough for body text.

As text on white, it needs to change

#007cc5 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.

Try it against your own background

The same colour, with one cone missing

As you see it

#069af3

protanopia

#9292f3 · ΔE00 19.9

deuteranopia

#8484f4 · ΔE00 19.5

tritanopia

#7171ff · ΔE00 20.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isOut of the Blue at ΔE00 0.59: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Out of the BlueΔE00 0.59 · #1199ee
  • PervencheΔE00 0.786 · #0099ee
  • Sky of MagritteΔE00 1.834 · #0099ff
  • Karimun BlueΔE00 1.942 · #2196f3
  • Blue NebulaΔE00 2.077 · #1199ff
  • Button BlueΔE00 2.472 · #24a0ed
  • Starfleet BlueΔE00 2.542 · #0096ff
  • Rockman BlueΔE00 2.714 · #31a2f2
  • Flax Flower BlueΔE00 2.913 · #4499dd
  • HomeworldΔE00 3.244 · #2299dd
  • Perfect DaysΔE00 3.309 · #49a0e7
  • Brilliant AzureΔE00 3.478 · #3399ff

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