Night Rendezvous

#66787e

A neutral that has no useful hue — it reads as a grey. It is mid — the hardest range to put text on, either colour struggles.

Hex

#66787e

RGB

102, 120, 126

OKLCh

56.0% 0.023 219.9°

CIELAB (D50)

49.1, -5.8, -5.6

What is true of this colour, and of no other

  • 5 other named colours sit within ΔE00 2 of it.
  • It uses only 23% 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 72.1; on black, Lc -29.6. 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 9.0 and 9.7 and 17.1 — no red cone.

Text on this colour

White text

4.61:1 — passes AA

Black text

4.55:1 — passes AA

White text is the better of the two at4.61:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#66787e

protanopia

#76767e · ΔE00 9.0

deuteranopia

#73737e · ΔE00 9.7

tritanopia

#7070a5 · ΔE00 17.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSea Beast at ΔE00 1.231: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Sea BeastΔE00 1.231 · #62777e
  • Crater LakeΔE00 1.707 · #63797e
  • LabradoriteΔE00 1.742 · #657b83
  • Gravel Grey BlueΔE00 1.82 · #637a82
  • Scatman BlueΔE00 1.908 · #647983
  • Relaxed NavyΔE00 2.178 · #627377
  • Astronomicon GreyΔE00 2.403 · #6b7c85
  • Goblin BlueΔE00 2.474 · #5f7278
  • Desert NightΔE00 2.577 · #5f727a
  • Hidden HarbourΔE00 2.715 · #60737d
  • CatfishΔE00 2.798 · #657d82
  • Winter HarborΔE00 2.84 · #5e737d

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