HueComb

Punk Rock Purple

#bb11aa

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

#bb11aa

RGB

187, 17, 170

OKLCh

55.0% 0.239 333.5°

CIELAB (D50)

44.1, 70.7, -38.3

What is true of this colour, and of no other

  • 3 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 75.8; on black, Lc -26.0. 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 26.4 and 25.5 and 70.8 — no red cone.

Text on this colour

White text

5.56:1 — passes AA

Black text

3.77:1 — large text only

White text is the better of the two at5.56:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#bb11aa

protanopia

#4646aa · ΔE00 26.4

deuteranopia

#6c6ca8 · ΔE00 25.5

tritanopia

#888800 · ΔE00 70.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPurple Pirate at ΔE00 0.68: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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