Cavolo Nero

#72939e

A cyan that is nearly neutral — the hue shows only against a true grey. It is light — black text sits on it comfortably, white text does not.

Hex

#72939e

RGB

114, 147, 158

OKLCh

64.2% 0.040 220.2°

CIELAB (D50)

58.7, -9.9, -9.8

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses only 34% 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 60.2; on black, Lc -41.5. 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 13.9 and 14.9 and 16.5 — no red cone.

Text on this colour

White text

3.29:1 — large text only

Black text

6.38:1 — passes AA

Black text is the better of the two at6.38:1. That is enough for body text.

As text on white, it needs to change

#5b7c86 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

#72939e

protanopia

#90909e · ΔE00 13.9

deuteranopia

#8a8a9f · ΔE00 14.9

tritanopia

#8484dc · ΔE00 16.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSilk Khimar at ΔE00 0.572: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Silk KhimarΔE00 0.572 · #70939e
  • Silver Fir BlueΔE00 1.288 · #7196a2
  • Wave JumperΔE00 1.581 · #6c919f
  • Cameo BlueΔE00 1.896 · #7097a2
  • Pulitzer BlueΔE00 2.055 · #6e8d98
  • Smoky BlueΔE00 2.139 · #7196a6
  • Secret CoveΔE00 2.226 · #68909d
  • Sheltered BayΔE00 2.329 · #758f9a
  • Ebb TideΔE00 2.336 · #7893a0
  • BaritoneΔE00 2.361 · #708e95
  • Architecture BlueΔE00 2.401 · #7195a6
  • Spirit MountainΔE00 2.911 · #6a8b98

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