HueComb

Silverback

#cbcbcb

A neutral that has no useful hue — it reads as a grey. It is very light — it works as a page background, not as text.

Hex

#cbcbcb

RGB

203, 203, 203

OKLCh

84.2% 0.000 89.9°

CIELAB (D50)

81.7, 0.0, 0.0

What is true of this colour, and of no other

  • 39 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 27.9; on black, Lc -75.1. 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.
  • All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.

Text on this colour

White text

1.62:1 — fails AA

Black text

12.94:1 — passes AA

Black text is the better of the two at12.94:1. That is enough for body text.

As text on white, it needs to change

#777777 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

#cbcbcb

protanopia

#cbcbcb · ΔE00 0.0

deuteranopia

#cbcbcb · ΔE00 0.0

tritanopia

#cbcbcb · ΔE00 0.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCerebral Grey at ΔE00 0.244: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Cerebral GreyΔE00 0.244 · #cccccc
  • Compact Disc GreyΔE00 0.487 · #cdcdcd
  • LeadbelcherΔE00 0.582 · #cacacb
  • Silver EagleΔE00 0.97 · #cfcfcf
  • Brushed MetalΔE00 1.047 · #c7c8c9
  • Urban GreyΔE00 1.077 · #cacacc
  • Cool EleganceΔE00 1.119 · #cfcfd0
  • Iron FistΔE00 1.135 · #cbcdcd
  • PaternosterΔE00 1.137 · #c7c7c6
  • Unique GreyΔE00 1.142 · #cbc9c9
  • Ancestral WaterΔE00 1.21 · #d0d0d0
  • Silver PolishΔE00 1.239 · #c6c6c6

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