#3B1303
Closest named color: Chocolate Brown (#411900). oklch(24.8% 0.069 41.8), rgb(59, 19, 3).
Aa
White text reads best on this color (16.40:1).
About this color
#3B1303 is a very dark, muted brown. In OKLCH its lightness is 25%, its chroma 0.069 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.024 away. White text reads best on it, at 16.40:1.
| Hue family | Browns |
| Lightness | very dark (25%) |
| Chroma | muted (0.069) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.28:1 |
| White text | 16.40:1 |
Values
| HEX | #3B1303 |
| RGB | rgb(59, 19, 3) |
| HSL | hsl(17, 90%, 12%) |
| OKLCH | oklch(24.8% 0.069 41.8) |
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 #3B1303 | 16.40:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #3B1303 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #3B1303 text on white | 16.40:1 | AAA | Lc 102.9 | Preferred for body text |
| #3B1303 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F9E5DE
oklch(93.6% 0.024 40.3)
-
Step 200
200
#F4D0C2
oklch(88.4% 0.045 42.4)
-
Step 300
300
#EFB098
oklch(81% 0.081 41.8)
-
Step 400
400
#E4835D
oklch(70.7% 0.131 41.8)
-
Step 500
500
#D95F2A
oklch(63.1% 0.167 41.7)
-
Step 600
600
#C04700
oklch(55.7% 0.168 42)
-
Step 700
700
#A23A00
oklch(49% 0.149 41.7)
-
Step 800
800
#862F00
oklch(42.8% 0.129 42)
-
Step 900
900
#6F2806
oklch(37.7% 0.109 41.6)
-
Step 950
950 (this color)
#3B1303
oklch(24.8% 0.069 41.8)
#3B1303 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) | #1E1A02 | 0.067 |
| Deuteranopia (no green cones) | #282302 | 0.061 |
| Tritanopia (no blue cones) | #420910 | 0.034 |
| Achromatopsia (no color) | #1F1F1F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B1303
#3B1303
oklch(24.8% 0.069 41.8)
- #002631
#002631
oklch(24.9% 0.046 221.9)
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 #3B1303, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.024
- Dark Brown #341C02 ΔE 0.029
- Deep Brown #410200 ΔE 0.032
- Mahogany #4A0100 ΔE 0.041
- Dark Maroon #3C0008 ΔE 0.043
- Jet #212529 ΔE 0.079
- Dark Plum #3F012C ΔE 0.088
- Dark #1B2431 ΔE 0.093
Use #3B1303 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.