#3F280B
Closest named color: Chocolate Brown (#411900). oklch(29.9% 0.054 69), rgb(63, 40, 11).
Aa
White text reads best on this color (13.81:1).
About this color
#3F280B is a dark, muted brown. In OKLCH its lightness is 30%, its chroma 0.054 and its hue 69°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.040 away. White text reads best on it, at 13.81:1.
| Hue family | Browns |
| Lightness | dark (30%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.51:1 |
| White text | 13.81:1 |
Values
| HEX | #3F280B |
| RGB | rgb(63, 40, 11) |
| HSL | hsl(33, 70%, 15%) |
| OKLCH | oklch(29.9% 0.054 69) |
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 #3F280B | 13.81:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #3F280B | 1.51:1 | Fails | Lc 0.0 | Not readable |
| #3F280B text on white | 13.81:1 | AAA | Lc 100.3 | Preferred for body text |
| #3F280B text on black | 1.51:1 | 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
#F9F4EF
oklch(97% 0.009 67.7)
-
Step 100
100
#F2E8DD
oklch(93.6% 0.018 70.2)
-
Step 200
200
#E9D5C1
oklch(88.4% 0.035 67.4)
-
Step 300
300
#DCBA94
oklch(80.9% 0.064 69.8)
-
Step 400
400
#CA9456
oklch(70.6% 0.103 68.7)
-
Step 500
500
#BC7816
oklch(63% 0.132 68.6)
-
Step 600
600
#A06400
oklch(55.6% 0.121 69.2)
-
Step 700
700
#875300
oklch(49% 0.107 68.7)
-
Step 800
800
#6F4400
oklch(42.7% 0.093 69.4)
-
Step 900
900
#5D3800
oklch(37.7% 0.082 69.1)
-
Step 950
950 (this color)
#3F280B
oklch(29.9% 0.054 69)
#3F280B 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) | #302A08 | 0.031 |
| Deuteranopia (no green cones) | #352F0C | 0.028 |
| Tritanopia (no blue cones) | #452222 | 0.044 |
| Achromatopsia (no color) | #2D2D2D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F280B
#3F280B
oklch(29.9% 0.054 69)
- #162F47
#162F47
oklch(29.8% 0.054 249.2)
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 #3F280B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.040
- Dark Brown #341C02 ΔE 0.046
- Pakistan Green #283618 ΔE 0.056
- Jet #212529 ΔE 0.074
- Dark Olive #373E02 ΔE 0.074
- Onyx #343A40 ΔE 0.082
- Mahogany #4A0100 ΔE 0.082
- Gunmetal #293241 ΔE 0.085
Use #3F280B 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.