Ruthless Empress

#573894

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

Hex

#573894

RGB

87, 56, 148

OKLCh

42.7% 0.145 295.1°

CIELAB (D50)

31.2, 30.7, -46.6

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 62% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 89.6; on black, Lc -12.6. 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 7.0 and 6.9 and 13.1 — no red cone.

Text on this colour

White text

8.76:1 — passes AA

Black text

2.40:1 — fails AA

White text is the better of the two at8.76:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#573894

protanopia

#3c3c94 · ΔE00 7.0

deuteranopia

#434394 · ΔE00 6.9

tritanopia

#494964 · ΔE00 13.1

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBlue Magenta Violet at ΔE00 0.852: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

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