#3F0D18
Closest named color: Dark Maroon (#3C0008). oklch(25.1% 0.077 11.8), rgb(63, 13, 24).
Aa
White text reads best on this color (16.37:1).
About this color
#3F0D18 is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.077 and its hue 12°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.032 away. White text reads best on it, at 16.37:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.28:1 |
| White text | 16.37:1 |
Values
| HEX | #3F0D18 |
| RGB | rgb(63, 13, 24) |
| HSL | hsl(347, 66%, 15%) |
| OKLCH | oklch(25.1% 0.077 11.8) |
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 #3F0D18 | 16.37:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #3F0D18 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #3F0D18 text on white | 16.37:1 | AAA | Lc 102.8 | Preferred for body text |
| #3F0D18 text on black | 1.28:1 | 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
#FEF2F3
oklch(97.1% 0.013 11.5)
-
Step 100
100
#FBE3E5
oklch(93.6% 0.026 11.9)
-
Step 200
200
#F9CCD0
oklch(88.5% 0.051 12.1)
-
Step 300
300
#F5A8B1
oklch(80.8% 0.091 11.6)
-
Step 400
400
#EC7688
oklch(70.6% 0.146 12)
-
Step 500
500
#E34B6B
oklch(63.1% 0.188 11.9)
-
Step 600
600
#CE2253
oklch(55.6% 0.204 11.9)
-
Step 700
700
#B20F44
oklch(49.2% 0.19 11.7)
-
Step 800
800
#901438
oklch(42.7% 0.157 11.6)
-
Step 900
900
#741B30
oklch(37.7% 0.123 11.8)
-
Step 950
950 (this color)
#3F0D18
oklch(25.1% 0.077 11.8)
#3F0D18 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) | #191918 | 0.087 |
| Deuteranopia (no green cones) | #262317 | 0.078 |
| Tritanopia (no blue cones) | #460411 | 0.020 |
| Achromatopsia (no color) | #202020 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0D18
#3F0D18
oklch(25.1% 0.077 11.8)
- #002827
#002827
oklch(25% 0.043 192.2)
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 #3F0D18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.032
- Deep Brown #410200 ΔE 0.035
- Mahogany #4A0100 ΔE 0.039
- Dark Plum #3F012C ΔE 0.049
- Chocolate Brown #411900 ΔE 0.052
- Aubergine #3D0734 ΔE 0.058
- Dark Brown #341C02 ΔE 0.062
- Eggplant #380835 ΔE 0.063
Use #3F0D18 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.