HueComb

Charismatic Red

#ee2244

A red that is about as vivid as sRGB can show at this lightness. It is light — black text sits on it comfortably, white text does not.

Hex

#ee2244

RGB

238, 34, 68

OKLCh

61.1% 0.231 20.3°

CIELAB (D50)

52.4, 74.0, 37.0

What is true of this colour, and of no other

  • 6 other named colours sit within ΔE00 2 of it.
  • It uses 94% 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 67.2; on black, Lc -34.5. 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 38.7 and 47.8 and 55.9 — no red cone.

Text on this colour

White text

4.24:1 — large text only

Black text

4.95:1 — passes AA

Black text is the better of the two at4.95:1. That is enough for body text.

As text on white, it needs to change

#e91940 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

#ee2244

protanopia

#5d5d46 · ΔE00 38.7

deuteranopia

#8c8c38 · ΔE00 47.8

tritanopia

#afaf00 · ΔE00 55.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCherry Tomato at ΔE00 1.183: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

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