#3F0F18
Closest named color: Dark Maroon (#3C0008). oklch(25.4% 0.075 13.2), rgb(63, 15, 24).
Aa
White text reads best on this color (16.24:1).
About this color
#3F0F18 is a dark, moderately saturated red. In OKLCH its lightness is 25%, its chroma 0.075 and its hue 13°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.035 away. White text reads best on it, at 16.24:1.
| Hue family | Reds |
| Lightness | dark (25%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.29:1 |
| White text | 16.24:1 |
Values
| HEX | #3F0F18 |
| RGB | rgb(63, 15, 24) |
| HSL | hsl(349, 62%, 15%) |
| OKLCH | oklch(25.4% 0.075 13.2) |
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 #3F0F18 | 16.24:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #3F0F18 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #3F0F18 text on white | 16.24:1 | AAA | Lc 102.7 | Preferred for body text |
| #3F0F18 text on black | 1.29:1 | 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
#FDF2F3
oklch(97% 0.012 11)
-
Step 100
100
#FBE3E5
oklch(93.6% 0.026 11.9)
-
Step 200
200
#F8CDD0
oklch(88.6% 0.049 13.4)
-
Step 300
300
#F4A9B0
oklch(80.9% 0.089 13.1)
-
Step 400
400
#EA7887
oklch(70.6% 0.141 13.1)
-
Step 500
500
#E04F69
oklch(63.1% 0.18 13.3)
-
Step 600
600
#CC2951
oklch(55.7% 0.197 13.3)
-
Step 700
700
#AF1842
oklch(49% 0.182 13)
-
Step 800
800
#8F1936
oklch(42.8% 0.152 13.4)
-
Step 900
900
#731E2F
oklch(37.8% 0.118 13.4)
-
Step 950
950 (this color)
#3F0F18
oklch(25.4% 0.075 13.2)
#3F0F18 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) | #1B1A18 | 0.082 |
| Deuteranopia (no green cones) | #272417 | 0.076 |
| Tritanopia (no blue cones) | #460613 | 0.019 |
| Achromatopsia (no color) | #202020 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0F18
#3F0F18
oklch(25.4% 0.075 13.2)
- #002928
#002928
oklch(25.4% 0.044 192.3)
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 #3F0F18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.035
- Deep Brown #410200 ΔE 0.036
- Mahogany #4A0100 ΔE 0.039
- Chocolate Brown #411900 ΔE 0.048
- Dark Plum #3F012C ΔE 0.052
- Dark Brown #341C02 ΔE 0.059
- Aubergine #3D0734 ΔE 0.060
- Eggplant #380835 ΔE 0.065
Use #3F0F18 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.