Pastel Turquoise

#99c5c4

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

#99c5c4

RGB

153, 197, 196

OKLCh

79.2% 0.046 194.5°

CIELAB (D50)

76.4, -15.2, -4.5

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 35.8; on black, Lc -66.7. 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 15.8 and 17.3 and 24.0 — no red cone.

Text on this colour

White text

1.89:1 — fails AA

Black text

11.14:1 — passes AA

Black text is the better of the two at11.14:1. That is enough for body text.

As text on white, it needs to change

#547e7d 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

#99c5c4

protanopia

#c1c1c4 · ΔE00 15.8

deuteranopia

#babac5 · ΔE00 17.3

tritanopia

#b1b1ff · ΔE00 24.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isFavourite Sweater at ΔE00 0.881: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

  • Favourite SweaterΔE00 0.881 · #9bc4c4
  • RaindropΔE00 1.202 · #9ec6c6
  • Bleu NattierΔE00 1.68 · #9cc2bf
  • Aqua MistΔE00 1.986 · #a0c9cb
  • Pitter PatterΔE00 2.064 · #9bc2bd
  • Cabana BayΔE00 2.072 · #8ec1c0
  • Chinese TzuΔE00 2.088 · #8fbfbd
  • Ice Boutique TurquoiseΔE00 2.13 · #a2cdcb
  • Eggshell BlueΔE00 2.173 · #a3ccc9
  • Blithe BlueΔE00 2.21 · #90bdbd
  • MysteryΔE00 2.315 · #a4cdcc
  • Turner’s LightΔE00 2.357 · #93bcbb

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