#3F0D13
Closest named color: Deep Brown (#410200). oklch(25% 0.077 18), rgb(63, 13, 19).
Aa
White text reads best on this color (16.42:1).
About this color
#3F0D13 is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.077 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.028 away. White text reads best on it, at 16.42:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.27:1 |
| White text | 16.42:1 |
Values
| HEX | #3F0D13 |
| RGB | rgb(63, 13, 19) |
| HSL | hsl(353, 66%, 15%) |
| OKLCH | oklch(25% 0.077 18) |
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 #3F0D13 | 16.42:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #3F0D13 | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #3F0D13 text on white | 16.42:1 | AAA | Lc 102.8 | Preferred for body text |
| #3F0D13 text on black | 1.27:1 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CCCC
oklch(88.4% 0.051 18.2)
-
Step 300
300
#F6A9AA
oklch(80.9% 0.091 18.4)
-
Step 400
400
#ED777E
oklch(70.7% 0.146 17.8)
-
Step 500
500
#E44C5D
oklch(63.1% 0.187 18)
-
Step 600
600
#CF2443
oklch(55.6% 0.203 18.2)
-
Step 700
700
#B31135
oklch(49.2% 0.189 18.2)
-
Step 800
800
#91152C
oklch(42.7% 0.156 18.2)
-
Step 900
900
#751C28
oklch(37.8% 0.122 18)
-
Step 950
950 (this color)
#3F0D13
oklch(25% 0.077 18)
#3F0D13 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) | #1A1913 | 0.085 |
| Deuteranopia (no green cones) | #272312 | 0.077 |
| Tritanopia (no blue cones) | #460310 | 0.020 |
| Achromatopsia (no color) | #1F1F1F | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0D13
#3F0D13
oklch(25% 0.077 18)
- #002829
#002829
oklch(25.1% 0.043 197.3)
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 #3F0D13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.028
- Dark Maroon #3C0008 ΔE 0.028
- Mahogany #4A0100 ΔE 0.034
- Chocolate Brown #411900 ΔE 0.045
- Dark Brown #341C02 ΔE 0.056
- Dark Plum #3F012C ΔE 0.058
- Aubergine #3D0734 ΔE 0.066
- Eggplant #380835 ΔE 0.071
Use #3F0D13 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.