Plumbeous

#5c7287

A blue that is nearly neutral — the hue shows only against a true grey. It is mid — the hardest range to put text on, either colour struggles.

Hex

#5c7287

RGB

92, 114, 135

OKLCh

54.2% 0.042 247.4°

CIELAB (D50)

46.9, -4.4, -14.4

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 uses only 29% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
  • As text on white it measures APCA Lc 74.5; on black, Lc -27.2. 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 10.4 and 10.8 and 9.5 — no red cone.

Text on this colour

White text

4.99:1 — passes AA

Black text

4.21:1 — large text only

White text is the better of the two at4.99:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#5c7287

protanopia

#707087 · ΔE00 10.4

deuteranopia

#6c6c87 · ΔE00 10.8

tritanopia

#6868af · ΔE00 9.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isLayers of Ocean at ΔE00 0.478: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Layers of OceanΔE00 0.478 · #5c7186
  • Silver BlueberryΔE00 0.792 · #5b7085
  • Lost AtlantisΔE00 0.887 · #5f7388
  • Arrowhead LakeΔE00 1.322 · #58728a
  • Thundering CloudsΔE00 1.337 · #597388
  • Blueberry DreamΔE00 1.583 · #586e84
  • Captains BlueΔE00 1.829 · #557088
  • Retro-Colonial BlueΔE00 1.85 · #5a758a
  • Sausalito PortΔE00 1.908 · #5d6f85
  • Glide TimeΔE00 1.935 · #5d6f80
  • Copen BlueΔE00 2.083 · #57748d
  • Deadwind PassΔE00 2.173 · #596d7f

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