Pacific Depths

#004488

A blue that is muted. It is dark — it carries white text and needs care with black.

Hex

#004488

RGB

0, 68, 136

OKLCh

39.2% 0.129 254.9°

CIELAB (D50)

28.5, 3.6, -44.0

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 91.6; on black, Lc -10.8. 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 10.5 and 10.4 and 11.2 — no red cone.

Text on this colour

White text

9.62:1 — passes AA

Black text

2.18:1 — fails AA

White text is the better of the two at9.62:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#004488

protanopia

#404088 · ΔE00 10.5

deuteranopia

#393988 · ΔE00 10.4

tritanopia

#3030ad · ΔE00 11.2

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPoster Blue at ΔE00 1.074: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Poster BlueΔE00 1.074 · #134682
  • Congress BlueΔE00 1.096 · #02478e
  • Bracing BlueΔE00 1.109 · #014182
  • Mondrian BlueΔE00 1.203 · #0f478c
  • BridgeportΔE00 1.222 · #004683
  • Lost RiverΔE00 1.305 · #08457e
  • Twilight BlueΔE00 1.584 · #0a437a
  • LiberalistΔE00 1.609 · #0c4792
  • Lady of the NightΔE00 1.656 · #05498b
  • Inoffensive BlueΔE00 1.98 · #114477
  • Fright NightΔE00 2.088 · #004499
  • Honourable BlueΔE00 2.21 · #164576

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