Madonna
#3f4250
A neutral that has no useful hue — it reads as a grey. It is dark — it carries white text and needs care with black.
Hex
#3f4250
RGB
63, 66, 80
OKLCh
38.2% 0.024 275.7°
CIELAB (D50)
28.1, 1.3, -8.9
What is true of this colour, and of no other
- 8 other named colours sit within ΔE00 2 of it.
- It uses only 10% 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 93.2; on black, Lc -9.3. 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.
- All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.
Text on this colour
White text
9.97:1 — passes AA
Black text
2.11:1 — fails AA
White text is the better of the two at9.97:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#3f4250
protanopia
#424250 · ΔE00 1.8
deuteranopia
#414150 · ΔE00 1.9
tritanopia
#414157 · ΔE00 4.2
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isLava Stone at ΔE00 1.309: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Lava StoneΔE00 1.309 · #3c4151
- IntellectualΔE00 1.471 · #3f414c
- Midnight SerenadeΔE00 1.495 · #41434e
- Black SapphireΔE00 1.618 · #434555
- Blue AshΔE00 1.662 · #414654
- Blueberry TartΔE00 1.742 · #3f4050
- Indian InkΔE00 1.801 · #3c3f4a
- Blue NightsΔE00 1.936 · #414657
- India InkΔE00 2.051 · #3c3d4c
- Flint PurpleΔE00 2.053 · #42424d
- Meteorite Black BlueΔE00 2.179 · #414756
- Mountain FigΔE00 2.215 · #383c49
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.