Purple Velour

#581a57

A magenta that is muted. It is dark — it carries white text and needs care with black.

Hex

#581a57

RGB

88, 26, 87

OKLCh

34.3% 0.121 328.5°

CIELAB (D50)

21.9, 34.9, -22.7

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It uses 77% of the chroma sRGB can show at this lightness and hue.
  • As text on white it measures APCA Lc 97.4; on black, Lc 0.0. 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 16.2 and 16.2 and 49.0 — no red cone.

Text on this colour

White text

12.35:1 — passes AA

Black text

1.70:1 — fails AA

White text is the better of the two at12.35:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#581a57

protanopia

#272757 · ΔE00 16.2

deuteranopia

#353556 · ΔE00 16.2

tritanopia

#414100 · ΔE00 49.0

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isCosmic Explorer at ΔE00 1.712: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • Cosmic ExplorerΔE00 1.712 · #551155
  • Grape PurpleΔE00 2.678 · #5d1451
  • Shani PurpleΔE00 3.08 · #4c1050
  • Blackest BerryΔE00 3.553 · #662266
  • Christmas PurpleΔE00 3.602 · #4d084b
  • Cloak and DaggerΔE00 3.744 · #550055
  • Beaten PurpleΔE00 3.793 · #4e0550
  • Kuwanomi PurpleΔE00 3.829 · #55295b
  • Clear PlumΔE00 4.003 · #64005e
  • CharismaΔE00 4.035 · #632a60
  • Amygdala PurpleΔE00 4.297 · #69045f
  • Alien PurpleΔE00 4.377 · #490648

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