#3F390B
Closest named color: Dark Olive (#373E02). oklch(34.1% 0.063 101.7), rgb(63, 57, 11).
Aa
White text reads best on this color (11.65:1).
About this color
#3F390B is a dark, muted brown. In OKLCH its lightness is 34%, its chroma 0.063 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.024 away. White text reads best on it, at 11.65:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | muted (0.063) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.80:1 |
| White text | 11.65:1 |
Values
| HEX | #3F390B |
| RGB | rgb(63, 57, 11) |
| HSL | hsl(53, 70%, 15%) |
| OKLCH | oklch(34.1% 0.063 101.7) |
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 #3F390B | 11.65:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #3F390B | 1.80:1 | Fails | Lc 0.0 | Not readable |
| #3F390B text on white | 11.65:1 | AAA | Lc 96.7 | Preferred for body text |
| #3F390B text on black | 1.80:1 | 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 900.
-
Step 50
50
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EBEAE0
oklch(93.5% 0.013 102)
-
Step 200
200
#DCDAC7
oklch(88.5% 0.026 102)
-
Step 300
300
#C6C29F
oklch(80.8% 0.048 102)
-
Step 400
400
#AAA36A
oklch(70.8% 0.077 102.1)
-
Step 500
500
#958B41
oklch(63% 0.096 101.7)
-
Step 600
600
#80751C
oklch(55.6% 0.106 102)
-
Step 700
700
#6C620D
oklch(49.1% 0.098 102)
-
Step 800
800
#585010
oklch(42.7% 0.081 101.9)
-
Step 900
900 (this color)
#3F390B
oklch(34.1% 0.063 101.7)
-
Step 950
950
#2A270E
oklch(26.9% 0.04 102.5)
#3F390B 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) | #3F3704 | 0.007 |
| Deuteranopia (no green cones) | #41390E | 0.005 |
| Tritanopia (no blue cones) | #453430 | 0.059 |
| Achromatopsia (no color) | #383838 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F390B
#3F390B
oklch(34.1% 0.063 101.7)
- #333458
#333458
oklch(34.2% 0.063 281.3)
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 #3F390B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.024
- Pakistan Green #283618 ΔE 0.042
- Forrest Green #154406 ΔE 0.065
- Hunter Green #0B4008 ΔE 0.068
- Pine Green #0A481E ΔE 0.069
- Evergreen #05472A ΔE 0.069
- Charcoal Grey #3C4142 ΔE 0.072
- Onyx #343A40 ΔE 0.075
Use #3F390B 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.