#3F0511
Closest named color: Dark Maroon (#3C0008). oklch(24% 0.087 15.5), rgb(63, 5, 17).
Aa
White text reads best on this color (16.91:1).
About this color
#3F0511 is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.087 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Maroon (#3C0008), ΔE 0.017 away. White text reads best on it, at 16.91:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Dark Maroon (#3C0008) |
| Black text | 1.24:1 |
| White text | 16.91:1 |
Values
| HEX | #3F0511 |
| RGB | rgb(63, 5, 17) |
| HSL | hsl(348, 85%, 13%) |
| OKLCH | oklch(24% 0.087 15.5) |
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 #3F0511 | 16.91:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #3F0511 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #3F0511 text on white | 16.91:1 | AAA | Lc 103.0 | Preferred for body text |
| #3F0511 text on black | 1.24:1 | 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
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FDE2E3
oklch(93.5% 0.03 15.1)
-
Step 200
200
#FDCBCD
oklch(88.6% 0.057 15.6)
-
Step 300
300
#FCA5AB
oklch(80.9% 0.103 15.1)
-
Step 400
400
#F56F7E
oklch(70.6% 0.165 15.4)
-
Step 500
500
#ED3D5E
oklch(63.2% 0.211 15.4)
-
Step 600
600
#D60046
oklch(55.7% 0.223 15.4)
-
Step 700
700
#B5003A
oklch(49.1% 0.196 15.4)
-
Step 800
800
#96002E
oklch(42.8% 0.171 15.6)
-
Step 900
900
#7A1128
oklch(37.8% 0.137 15.8)
-
Step 950
950 (this color)
#3F0511
oklch(24% 0.087 15.5)
#3F0511 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) | #161511 | 0.097 |
| Deuteranopia (no green cones) | #25210F | 0.088 |
| Tritanopia (no blue cones) | #46000A | 0.018 |
| Achromatopsia (no color) | #1D1D1D | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0511
#3F0511
oklch(24% 0.087 15.5)
- #002525
#002525
oklch(23.9% 0.041 194.8)
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 #3F0511, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Maroon #3C0008 ΔE 0.017
- Deep Brown #410200 ΔE 0.025
- Mahogany #4A0100 ΔE 0.034
- Dark Plum #3F012C ΔE 0.053
- Chocolate Brown #411900 ΔE 0.056
- Aubergine #3D0734 ΔE 0.065
- Dark Brown #341C02 ΔE 0.067
- Eggplant #380835 ΔE 0.070
Use #3F0511 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.