Royal Lavender

#7851a9

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

Hex

#7851a9

RGB

120, 81, 169

OKLCh

51.8% 0.138 302.3°

CIELAB (D50)

42.0, 30.7, -41.8

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 51% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 79.4; on black, Lc -22.5. 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 9.6 and 9.2 and 39.8 — no red cone.

Text on this colour

White text

5.92:1 — passes AA

Black text

3.55:1 — large text only

White text is the better of the two at5.92:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#7851a9

protanopia

#5656a9 · ΔE00 9.6

deuteranopia

#5e5ea9 · ΔE00 9.2

tritanopia

#67674f · ΔE00 39.8

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isStudio at ΔE00 2.44: between 2 and 5 — clearly two colours when compared, easily mistaken from memory. What the numbers mean.

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