HueComb

Explosive Purple

#cc11bb

A magenta 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

#cc11bb

RGB

204, 17, 187

OKLCh

58.7% 0.257 333.0°

CIELAB (D50)

48.1, 75.9, -41.8

What is true of this colour, and of no other

  • One other named colour sits 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 71.2; on black, Lc -30.5. 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 27.5 and 26.5 and 73.5 — no red cone.

Text on this colour

White text

4.81:1 — passes AA

Black text

4.37:1 — large text only

White text is the better of the two at4.81:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#cc11bb

protanopia

#4c4cbb · ΔE00 27.5

deuteranopia

#7676b9 · ΔE00 26.5

tritanopia

#959500 · ΔE00 73.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isMystifying Magenta at ΔE00 1.893: 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.