#3F091E
Closest named color: Dark Plum (#3F012C). oklch(24.9% 0.084 2.2), rgb(63, 9, 30).
Aa
White text reads best on this color (16.54:1).
About this color
#3F091E is a very dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.084 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Plum (#3F012C), ΔE 0.034 away. White text reads best on it, at 16.54:1.
| Hue family | Reds |
| Lightness | very dark (25%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Dark Plum (#3F012C) |
| Black text | 1.26:1 |
| White text | 16.54:1 |
Values
| HEX | #3F091E |
| RGB | rgb(63, 9, 30) |
| HSL | hsl(337, 75%, 14%) |
| OKLCH | oklch(24.9% 0.084 2.2) |
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 #3F091E | 16.54:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #3F091E | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #3F091E text on white | 16.54:1 | AAA | Lc 102.8 | Preferred for body text |
| #3F091E text on black | 1.26:1 | 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
#FEF2F5
oklch(97.1% 0.013 0.3)
-
Step 100
100
#FCE2E8
oklch(93.6% 0.03 2)
-
Step 200
200
#FACBD6
oklch(88.6% 0.055 2.6)
-
Step 300
300
#F7A6BB
oklch(81% 0.099 2.6)
-
Step 400
400
#EF7198
oklch(70.8% 0.159 2.5)
-
Step 500
500
#E5427F
oklch(63.1% 0.204 2.4)
-
Step 600
600
#D00969
oklch(55.6% 0.221 2.1)
-
Step 700
700
#B10057
oklch(49.1% 0.198 2.4)
-
Step 800
800
#920347
oklch(42.7% 0.171 2.4)
-
Step 900
900
#75153C
oklch(37.7% 0.133 2)
-
Step 950
950 (this color)
#3F091E
oklch(24.9% 0.084 2.2)
#3F091E 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) | #16181E | 0.094 |
| Deuteranopia (no green cones) | #24221D | 0.084 |
| Tritanopia (no blue cones) | #450212 | 0.024 |
| Achromatopsia (no color) | #1F1F1F | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F091E
#3F091E
oklch(24.9% 0.084 2.2)
- #002823
#002823
oklch(24.8% 0.044 182.5)
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 #3F091E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Plum #3F012C ΔE 0.034
- Dark Maroon #3C0008 ΔE 0.037
- Aubergine #3D0734 ΔE 0.044
- Deep Brown #410200 ΔE 0.046
- Eggplant #380835 ΔE 0.050
- Mahogany #4A0100 ΔE 0.050
- Chocolate Brown #411900 ΔE 0.067
- Eggplant Purple #430541 ΔE 0.068
Use #3F091E 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.