Silver Mistral

#b4b9b9

A neutral that has no useful hue — it reads as a grey. It is light — black text sits on it comfortably, white text does not.

Hex

#b4b9b9

RGB

180, 185, 185

OKLCh

78.2% 0.006 197.0°

CIELAB (D50)

74.7, -1.8, -0.6

What is true of this colour, and of no other

  • 13 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 almost none of the chroma available here: this is a grey with a trace of hue rather than a colour.
  • As text on white it measures APCA Lc 38.4; on black, Lc -64.0. 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.
  • tritanopia shifts it by ΔE00 8.4 — no blue cone.

Text on this colour

White text

1.98:1 — fails AA

Black text

10.58:1 — passes AA

Black text is the better of the two at10.58:1. That is enough for body text.

As text on white, it needs to change

#737878 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.

Try it against your own background

The same colour, with one cone missing

As you see it

#b4b9b9

protanopia

#b8b8b9 · ΔE00 2.7

deuteranopia

#b8b8b9 · ΔE00 2.9

tritanopia

#b7b7c7 · ΔE00 8.4

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMarseilles at ΔE00 0.777: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • MarseillesΔE00 0.777 · #b7bbbb
  • French SilverΔE00 0.995 · #b8bcbc
  • Monorail SilverΔE00 1.08 · #b8bcbb
  • OnlineΔE00 1.086 · #b0b5b5
  • Mischief MouseΔE00 1.136 · #b7bab9
  • GravityΔE00 1.178 · #b8bcbd
  • Samovar SilverΔE00 1.355 · #b8bebe
  • Wheels Up!ΔE00 1.438 · #b8bebf
  • Oyster MushroomΔE00 1.533 · #b8bcbe
  • Rocky ShelterΔE00 1.596 · #b8baba
  • Astroscopus GreyΔE00 1.696 · #afb4b6
  • Lunar SurfaceΔE00 1.762 · #b6b9b6

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