HueComb

Sail to the Sea

#99c3f0

A blue 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

#99c3f0

RGB

153, 195, 240

OKLCh

80.3% 0.078 250.6°

CIELAB (D50)

77.0, -6.2, -27.2

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • It uses 76% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 34.5; on black, Lc -68.1. 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 12.9 and 12.1 and 10.5 — no red cone.

Text on this colour

White text

1.84:1 — fails AA

Black text

11.42:1 — passes AA

Black text is the better of the two at11.42:1. That is enough for body text.

As text on white, it needs to change

#527aa3 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

#99c3f0

protanopia

#bfbff0 · ΔE00 12.9

deuteranopia

#b8b8f1 · ΔE00 12.1

tritanopia

#b0b0ff · ΔE00 10.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSalvia Blue at ΔE00 1.715: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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