Sanctum of Shadows

#3c2f4e

A violet that is nearly neutral — the hue shows only against a true grey. It is dark — it carries white text and needs care with black.

Hex

#3c2f4e

RGB

60, 47, 78

OKLCh

33.4% 0.056 302.8°

CIELAB (D50)

22.0, 11.7, -17.0

What is true of this colour, and of no other

  • 4 other named colours sit within ΔE00 2 of it.
  • It uses only 32% of the chroma available at this lightness and hue — there is a far more vivid version of this colour inside sRGB.
  • As text on white it measures APCA Lc 98.0; 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 5.6 and 5.8 and 22.9 — no red cone.

Text on this colour

White text

12.29:1 — passes AA

Black text

1.71:1 — fails AA

White text is the better of the two at12.29:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#3c2f4e

protanopia

#31314e · ΔE00 5.6

deuteranopia

#33334e · ΔE00 5.8

tritanopia

#36362d · ΔE00 22.9

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isJagger at ΔE00 1.75: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

  • JaggerΔE00 1.75 · #3f2e4c
  • Violet PurpleΔE00 1.798 · #3a2f52
  • Naggaroth NightΔE00 1.911 · #3d3354
  • Obsidian Lava BlackΔE00 1.959 · #382b46
  • Devil’s PlumΔE00 2.093 · #423450
  • MaharajaΔE00 2.651 · #3f354f
  • Midnight PieΔE00 2.782 · #372d52
  • Operetta MauveΔE00 2.816 · #3a284c
  • Acai BerryΔE00 2.926 · #42314b
  • Caddies SilkΔE00 3.302 · #3e354d
  • Purple PlumeriaΔE00 3.396 · #473854
  • Astral AuraΔE00 3.458 · #363151

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