Niagara Falls

#cbe3ee

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

#cbe3ee

RGB

203, 227, 238

OKLCh

90.1% 0.030 227.0°

CIELAB (D50)

88.7, -6.6, -8.2

What is true of this colour, and of no other

  • 18 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses 48% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 16.4; on black, Lc -87.3. 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 10.5 and 11.2 and 14.8 — no red cone.

Text on this colour

White text

1.33:1 — fails AA

Black text

15.76:1 — passes AA

Black text is the better of the two at15.76:1. That is enough for body text.

As text on white, it needs to change

#647a84 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

#cbe3ee

protanopia

#e0e0ee · ΔE00 10.5

deuteranopia

#dcdcee · ΔE00 11.2

tritanopia

#d8d8ff · ΔE00 14.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSkywriter at ΔE00 0.775: 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.