HueComb

High Blue

#4ca8e0

A blue that is muted. It is light — black text sits on it comfortably, white text does not.

Hex

#4ca8e0

RGB

76, 168, 224

OKLCh

70.0% 0.120 238.6°

CIELAB (D50)

65.1, -15.1, -37.1

What is true of this colour, and of no other

  • 3 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 51.0; on black, Lc -50.9. 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 20.0 and 19.2 and 18.6 — no red cone.

Text on this colour

White text

2.63:1 — fails AA

Black text

7.98:1 — passes AA

Black text is the better of the two at7.98:1. That is enough for body text.

As text on white, it needs to change

#167eb3 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

#4ca8e0

protanopia

#a1a1e0 · ΔE00 20.0

deuteranopia

#9494e1 · ΔE00 19.2

tritanopia

#8585ff · ΔE00 18.6

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Astro at ΔE00 1.243: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. 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.