#3F001F
Closest named color: Dark Plum (#3F012C). oklch(23.9% 0.097 357.7), rgb(63, 0, 31).
Aa
White text reads best on this color (17.05:1).
About this color
#3F001F is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.097 and its hue 358°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.025 away. White text reads best on it, at 17.05:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.23:1 |
| White text | 17.05:1 |
Values
| HEX | #3F001F |
| RGB | rgb(63, 0, 31) |
| HSL | hsl(330, 100%, 12%) |
| OKLCH | oklch(23.9% 0.097 357.7) |
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 #3F001F | 17.05:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #3F001F | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #3F001F text on white | 17.05:1 | AAA | Lc 102.9 | Preferred for body text |
| #3F001F text on black | 1.23:1 | 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
#FEE1EA
oklch(93.6% 0.034 357)
-
Step 200
200
#FEC8D9
oklch(88.5% 0.065 357.8)
-
Step 300
300
#FDA1C1
oklch(81% 0.115 357.6)
-
Step 400
400
#F667A1
oklch(70.7% 0.184 357.5)
-
Step 500
500
#EE2989
oklch(63.1% 0.236 357.9)
-
Step 600
600
#CF0073
oklch(55.5% 0.226 357.8)
-
Step 700
700
#AF0061
oklch(49% 0.2 357.5)
-
Step 800
800
#91004F
oklch(42.7% 0.174 357.7)
-
Step 900
900
#7A0042
oklch(37.7% 0.154 357.4)
-
Step 950
950 (this color)
#3F001F
oklch(23.9% 0.097 357.7)
#3F001F 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) | #0F1420 | 0.111 |
| Deuteranopia (no green cones) | #21201E | 0.097 |
| Tritanopia (no blue cones) | #45000E | 0.035 |
| Achromatopsia (no color) | #1C1C1C | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F001F
#3F001F
oklch(23.9% 0.097 357.7)
- #00261F
#00261F
oklch(24% 0.044 177.4)
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 #3F001F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.025
- Aubergine #3D0734 ΔE 0.040
- Dark Maroon #3C0008 ΔE 0.040
- Eggplant #380835 ΔE 0.045
- Deep Brown #410200 ΔE 0.054
- Mahogany #4A0100 ΔE 0.059
- Eggplant Purple #430541 ΔE 0.064
- Dark Purple #35063E ΔE 0.065
Use #3F001F 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.