HueComb

Polar Glow

#5097fc

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

Hex

#5097fc

RGB

80, 151, 252

OKLCh

67.8% 0.166 257.5°

CIELAB (D50)

61.5, 2.1, -58.0

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • It uses 97% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
  • As text on white it measures APCA Lc 55.4; on black, Lc -46.4. 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 13.6 and 13.2 and 13.9 — no red cone.

Text on this colour

White text

2.93:1 — fails AA

Black text

7.17:1 — passes AA

Black text is the better of the two at7.17:1. That is enough for body text.

As text on white, it needs to change

#2f75d7 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

#5097fc

protanopia

#9191fc · ΔE00 13.6

deuteranopia

#8787fd · ΔE00 13.2

tritanopia

#7b7bff · ΔE00 13.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Chaos at ΔE00 0.842: 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.