HueComb

Calm Waters

#e7fafa

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

#e7fafa

RGB

231, 250, 250

OKLCh

97.1% 0.020 196.8°

CIELAB (D50)

96.9, -6.4, -2.2

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses 48% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 0.0; on black, Lc -102.0. 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 8.3 and 9.0 and 11.1 — no red cone.

Text on this colour

White text

1.08:1 — fails AA

Black text

19.45:1 — passes AA

Black text is the better of the two at19.45:1. That is enough for body text.

As text on white, it needs to change

#697a7a 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

#e7fafa

protanopia

#f8f8fa · ΔE00 8.3

deuteranopia

#f5f5fa · ΔE00 9.0

tritanopia

#f1f1ff · ΔE00 11.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPlacebo Sky at ΔE00 0.879: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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