#3F001D
Closest named color: Dark Plum (#3F012C). oklch(23.8% 0.097 359.9), rgb(63, 0, 29).
Aa
White text reads best on this color (17.08:1).
About this color
#3F001D is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.097 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.029 away. White text reads best on it, at 17.08:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.22:1 |
| White text | 17.08:1 |
Values
| HEX | #3F001D |
| RGB | rgb(63, 0, 29) |
| HSL | hsl(332, 100%, 12%) |
| OKLCH | oklch(23.8% 0.097 359.9) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3F001D | 17.08:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #3F001D | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #3F001D text on white | 17.08:1 | AAA | Lc 102.9 | Preferred for body text |
| #3F001D text on black | 1.22:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FFF1F5
oklch(97% 0.016 358)
-
Step 100
100
#FEE1E9
oklch(93.6% 0.033 359.2)
-
Step 200
200
#FEC8D7
oklch(88.4% 0.064 0.1)
-
Step 300
300
#FDA1BE
oklch(80.9% 0.114 359.6)
-
Step 400
400
#F7679C
oklch(70.7% 0.183 359.9)
-
Step 500
500
#EF2A84
oklch(63.2% 0.234 359.9)
-
Step 600
600
#D0006E
oklch(55.6% 0.225 359.9)
-
Step 700
700
#B0005C
oklch(49% 0.199 360)
-
Step 800
800
#92004B
oklch(42.7% 0.173 0.1)
-
Step 900
900
#7B003E
oklch(37.7% 0.153 0.2)
-
Step 950
950 (this color)
#3F001D
oklch(23.8% 0.097 359.9)
#3F001D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #10141E | 0.110 |
| Deuteranopia (no green cones) | #21201C | 0.098 |
| Tritanopia (no blue cones) | #45000D | 0.033 |
| Achromatopsia (no color) | #1C1C1C | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F001D
#3F001D
oklch(23.8% 0.097 359.9)
- #002520
#002520
oklch(23.7% 0.043 181.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3F001D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.029
- Dark Maroon #3C0008 ΔE 0.036
- Aubergine #3D0734 ΔE 0.043
- Eggplant #380835 ΔE 0.049
- Deep Brown #410200 ΔE 0.050
- Mahogany #4A0100 ΔE 0.056
- Eggplant Purple #430541 ΔE 0.067
- Dark Purple #35063E ΔE 0.069
Use #3F001D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.