Plum

#66386a

A magenta that is muted. It is mid — the hardest range to put text on, either colour struggles.

Hex

#66386a

RGB

102, 56, 106

OKLCh

41.8% 0.097 324.2°

CIELAB (D50)

31.0, 27.2, -20.6

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses 50% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 90.4; on black, Lc -11.9. 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 13.9 and 13.9 and 48.7 — no red cone.

Text on this colour

White text

8.98:1 — passes AA

Black text

2.34:1 — fails AA

White text is the better of the two at8.98:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#66386a

protanopia

#3f3f6a · ΔE00 13.9

deuteranopia

#494969 · ΔE00 13.9

tritanopia

#535300 · ΔE00 48.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isWineberry at ΔE00 1.56: 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.