Wavy Navy

#006597

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

Hex

#006597

RGB

0, 101, 151

OKLCh

48.4% 0.112 240.5°

CIELAB (D50)

39.9, -10.6, -34.9

What is true of this colour, and of no other

  • 10 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • 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 81.0; on black, Lc -20.9. 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 17.6 and 16.9 and 16.3 — no red cone.

Text on this colour

White text

6.35:1 — passes AA

Black text

3.31:1 — large text only

White text is the better of the two at6.35:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#006597

protanopia

#5f5f97 · ΔE00 17.6

deuteranopia

#565698 · ΔE00 16.9

tritanopia

#4949da · ΔE00 16.3

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCraving Cobalt at ΔE00 0.36: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Craving CobaltΔE00 0.36 · #016496
  • Impulse BlueΔE00 0.406 · #006699
  • Bauhaus BlueΔE00 0.979 · #006392
  • Europe BlueΔE00 1.123 · #006796
  • Peacock BlueΔE00 1.327 · #016795
  • Kingfisher BlueΔE00 1.337 · #006491
  • FelixΔE00 1.813 · #00608f
  • Atlantic MystiqueΔE00 1.866 · #00629a
  • PontoonΔE00 1.877 · #0c608e
  • Traditional BlueΔE00 1.977 · #1f648d
  • HydraΔE00 2.288 · #006995
  • Copenhagen BlueΔE00 2.289 · #21638b

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