Ultrapurple Merge

#654ea3

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

Hex

#654ea3

RGB

101, 78, 163

OKLCh

48.9% 0.132 293.4°

CIELAB (D50)

38.9, 25.4, -43.4

What is true of this colour, and of no other

  • No other named colour in the set is within ΔE00 2 of it — it stands alone.
  • It uses 49% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 82.5; on black, Lc -19.4. 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 5.7 and 5.5 and 9.9 — no red cone.

Text on this colour

White text

6.62:1 — passes AA

Black text

3.17:1 — large text only

White text is the better of the two at6.62:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#654ea3

protanopia

#5151a3 · ΔE00 5.7

deuteranopia

#5656a3 · ΔE00 5.5

tritanopia

#5a5a7d · ΔE00 9.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPurple Opulence at ΔE00 3.564: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. 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.