HueComb

Baltic

#279d9f

A cyan that is muted. It is light — black text sits on it comfortably, white text does not.

Hex

#279d9f

RGB

39, 157, 159

OKLCh

63.5% 0.099 196.7°

CIELAB (D50)

58.7, -32.0, -10.8

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses 92% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
  • As text on white it measures APCA Lc 59.7; on black, Lc -42.0. 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.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 24.7 and 25.7 and 32.8 — no red cone.

Text on this colour

White text

3.28:1 — large text only

Black text

6.41:1 — passes AA

Black text is the better of the two at6.41:1. That is enough for body text.

As text on white, it needs to change

#008486 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved, and some saturation was given up to stay inside sRGB.

Try it against your own background

The same colour, with one cone missing

As you see it

#279d9f

protanopia

#95959f · ΔE00 24.7

deuteranopia

#8888a0 · ΔE00 25.7

tritanopia

#7676ff · ΔE00 32.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isEmpress Envy at ΔE00 0.863: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Empress EnvyΔE00 0.863 · #2a9ca0
  • Pleasant StreamΔE00 1.433 · #00a0a2
  • Riviera ParadiseΔE00 1.651 · #009a9e
  • Ocean ReefΔE00 1.706 · #1f989b
  • DucatiΔE00 1.742 · #16a0a6
  • Island DreamΔE00 1.961 · #139ba2
  • Regula Barbara BlueΔE00 2.117 · #009999
  • JavaΔE00 2.126 · #259797
  • Wax Crayon BlueΔE00 2.368 · #00a4a6
  • Cancer Seagreen ScarabΔE00 2.436 · #27a0a8
  • Talismanic TealΔE00 2.525 · #159f9b
  • Latigo BayΔE00 2.532 · #3b9c98

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