HueComb

Olympic Blue

#4f8fe6

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

Hex

#4f8fe6

RGB

79, 143, 230

OKLCh

64.8% 0.147 256.6°

CIELAB (D50)

58.3, 0.1, -51.1

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • It uses 77% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 59.9; on black, Lc -41.9. 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 13.3 and 12.8 and 12.8 — no red cone.

Text on this colour

White text

3.28:1 — large text only

Black text

6.40:1 — passes AA

Black text is the better of the two at6.40:1. That is enough for body text.

As text on white, it needs to change

#3777cc 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

#4f8fe6

protanopia

#8a8ae6 · ΔE00 13.3

deuteranopia

#8080e7 · ΔE00 12.8

tritanopia

#7575ff · ΔE00 12.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isOregon Blue at ΔE00 1.499: 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.