#3F0803
Closest named color: Deep Brown (#410200). oklch(24.1% 0.085 31.1), rgb(63, 8, 3).
Aa
White text reads best on this color (16.83:1).
About this color
#3F0803 is a very dark, moderately saturated red. In OKLCH its lightness is 24%, its chroma 0.085 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Brown (#410200), ΔE 0.010 away. White text reads best on it, at 16.83:1.
| Hue family | Reds |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Deep Brown (#410200) |
| Black text | 1.24:1 |
| White text | 16.83:1 |
Values
| HEX | #3F0803 |
| RGB | rgb(63, 8, 3) |
| HSL | hsl(5, 91%, 13%) |
| OKLCH | oklch(24.1% 0.085 31.1) |
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 #3F0803 | 16.83:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #3F0803 | 1.24:1 | Fails | Lc 0.0 | Not readable |
| #3F0803 text on white | 16.83:1 | AAA | Lc 103.0 | Preferred for body text |
| #3F0803 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DE
oklch(93.6% 0.03 30.6)
-
Step 200
200
#FCCCC3
oklch(88.5% 0.056 30.5)
-
Step 300
300
#FBA899
oklch(80.9% 0.101 30.7)
-
Step 400
400
#F47560
oklch(70.8% 0.16 31.1)
-
Step 500
500
#EC462F
oklch(63.1% 0.206 31.1)
-
Step 600
600
#D41D00
oklch(55.5% 0.216 31.1)
-
Step 700
700
#B41600
oklch(49.1% 0.191 31)
-
Step 800
800
#951100
oklch(42.8% 0.166 31.1)
-
Step 900
900
#79170A
oklch(37.7% 0.134 31.1)
-
Step 950
950 (this color)
#3F0803
oklch(24.1% 0.085 31.1)
#3F0803 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) | #191502 | 0.091 |
| Deuteranopia (no green cones) | #272101 | 0.081 |
| Tritanopia (no blue cones) | #460007 | 0.021 |
| Achromatopsia (no color) | #1D1D1D | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F0803
#3F0803
oklch(24.1% 0.085 31.1)
- #00252B
#00252B
oklch(24.2% 0.042 210.7)
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 #3F0803, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Brown #410200 ΔE 0.010
- Dark Maroon #3C0008 ΔE 0.023
- Mahogany #4A0100 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.040
- Dark Brown #341C02 ΔE 0.051
- Dark Plum #3F012C ΔE 0.076
- Aubergine #3D0734 ΔE 0.087
- Eggplant #380835 ΔE 0.091
Use #3F0803 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.