Royal Decree
#403547
A magenta 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
#403547
RGB
64, 53, 71
OKLCh
34.8% 0.034 312.1°
CIELAB (D50)
23.9, 8.1, -9.3
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses only 20% 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 96.6; 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 5.9 and 6.2 and 25.3 — no red cone.
Text on this colour
White text
11.55:1 — passes AA
Black text
1.82:1 — fails AA
White text is the better of the two at11.55:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#403547
protanopia
#363647 · ΔE00 5.9
deuteranopia
#383847 · ΔE00 6.2
tritanopia
#3b3b22 · ΔE00 25.3
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isWineshade at ΔE00 0.993: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.
- WineshadeΔE00 0.993 · #433748
- MysteriosoΔE00 1.715 · #46394b
- Call It a NightΔE00 1.724 · #42364c
- Plum IslandΔE00 2.276 · #463c4e
- Royal CoronationΔE00 2.401 · #3e3542
- PlushΔE00 2.741 · #3b3549
- Caddies SilkΔE00 2.784 · #3e354d
- PreserveΔE00 2.916 · #4a3c50
- Purple VerbenaΔE00 2.939 · #46354b
- Gothic GrapeΔE00 3.027 · #473951
- MartiniqueΔE00 3.079 · #3c3748
- Wolf’s BaneΔE00 3.35 · #3d343f
11 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.