Hyper Blue

#015f97

A blue that is muted. It is mid — the hardest range to put text on, either colour struggles.

Hex

#015f97

RGB

1, 95, 151

OKLCh

46.9% 0.117 244.8°

CIELAB (D50)

38.0, -7.2, -37.9

What is true of this colour, and of no other

  • 7 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 82.9; on black, Lc -19.0. 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 16.0 and 15.4 and 15.2 — no red cone.

Text on this colour

White text

6.81:1 — passes AA

Black text

3.09:1 — large text only

White text is the better of the two at6.81:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#015f97

protanopia

#5a5a97 · ΔE00 16.0

deuteranopia

#505098 · ΔE00 15.4

tritanopia

#4444d3 · 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 isJetski Race at ΔE00 0.74: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Jetski RaceΔE00 0.74 · #005d96
  • Rave RegattaΔE00 0.994 · #00619d
  • Atlantic MystiqueΔE00 1.065 · #00629a
  • Lapis JewelΔE00 1.473 · #165d95
  • Brigadier BlueΔE00 1.632 · #0063a0
  • Buccaneer BlueΔE00 1.771 · #035b8d
  • Prime BlueΔE00 1.93 · #0064a1
  • Lapis Lazuli BlueΔE00 2.053 · #215f96
  • PontoonΔE00 2.168 · #0c608e
  • Baleine BlueΔE00 2.201 · #165a90
  • FelixΔE00 2.25 · #00608f
  • Craving CobaltΔE00 2.378 · #016496

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