HueComb

Amethyst

#9966cc

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

Hex

#9966cc

RGB

153, 102, 204

OKLCh

60.8% 0.156 305.3°

CIELAB (D50)

52.1, 36.0, -45.7

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 58% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 67.9; on black, Lc -33.8. 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 12.0 and 11.4 and 56.5 — no red cone.

Text on this colour

White text

4.10:1 — large text only

Black text

5.13:1 — passes AA

Black text is the better of the two at5.13:1. That is enough for body text.

As text on white, it needs to change

#925fc4 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

#9966cc

protanopia

#6d6dcc · ΔE00 12.0

deuteranopia

#7878cb · ΔE00 11.4

tritanopia

#82823c · ΔE00 56.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isLegendary Lavender at ΔE00 1.896: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. 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.