HueComb

Tropical Freeze

#99ddcc

A cyan that is nearly neutral — the hue shows only against a true grey. It is very light — it works as a page background, not as text.

Hex

#99ddcc

RGB

153, 221, 204

OKLCh

84.7% 0.073 177.1°

CIELAB (D50)

83.2, -25.0, 1.2

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses 46% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 25.1; on black, Lc -78.0. 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 19.0 and 20.4 and 29.0 — no red cone.

Text on this colour

White text

1.55:1 — fails AA

Black text

13.57:1 — passes AA

Black text is the better of the two at13.57:1. That is enough for body text.

As text on white, it needs to change

#3f8273 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

#99ddcc

protanopia

#d7d7cc · ΔE00 19.0

deuteranopia

#cccccd · ΔE00 20.4

tritanopia

#bfbfff · ΔE00 29.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBeach Glass at ΔE00 0.839: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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