HueComb

Neon Romance

#e9023a

A red that is about as vivid as sRGB can show at this lightness. It is mid — the hardest range to put text on, either colour struggles.

Hex

#e9023a

RGB

233, 2, 58

OKLCh

59.1% 0.237 20.8°

CIELAB (D50)

50.0, 76.0, 39.9

What is true of this colour, and of no other

  • 2 other named colours sit within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 69.3; on black, Lc -32.3. 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 39.5 and 48.5 and 55.8 — no red cone.

Text on this colour

White text

4.63:1 — passes AA

Black text

4.53:1 — passes AA

White text is the better of the two at4.63:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#e9023a

protanopia

#56563c · ΔE00 39.5

deuteranopia

#86862b · ΔE00 48.5

tritanopia

#aaaa00 · ΔE00 55.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isRed Ribbon at ΔE00 1.324: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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