#3F481B
Closest named color: Dark Olive (#373E02). oklch(38.2% 0.068 119.2), rgb(63, 72, 27).
Aa
White text reads best on this color (9.74:1).
About this color
#3F481B is a dark, muted brown. In OKLCH its lightness is 38%, its chroma 0.068 and its hue 119°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.039 away. White text reads best on it, at 9.74:1.
| Hue family | Browns |
| Lightness | dark (38%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.15:1 |
| White text | 9.74:1 |
Values
| HEX | #3F481B |
| RGB | rgb(63, 72, 27) |
| HSL | hsl(72, 45%, 19%) |
| OKLCH | oklch(38.2% 0.068 119.2) |
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 #3F481B | 9.74:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #3F481B | 2.15:1 | Fails | Lc 11.4 | Not readable |
| #3F481B text on white | 9.74:1 | AAA | Lc 92.6 | Preferred for body text |
| #3F481B text on black | 2.15:1 | Fails | Lc -9.9 | 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
#F5F6F1
oklch(97.1% 0.007 115.7)
-
Step 100
100
#E8EBE1
oklch(93.5% 0.014 120.3)
-
Step 200
200
#D7DCC8
oklch(88.5% 0.027 118.4)
-
Step 300
300
#BCC6A1
oklch(80.9% 0.052 119.8)
-
Step 400
400
#9BA86E
oklch(70.7% 0.081 118.8)
-
Step 500
500
#829246
oklch(63% 0.103 119.3)
-
Step 600
600
#6C7C25
oklch(55.5% 0.112 119.2)
-
Step 700
700
#5A6916
oklch(49.2% 0.106 119.6)
-
Step 800
800
#4A5516
oklch(42.6% 0.086 118.8)
-
Step 900
900 (this color)
#3F481B
oklch(38.2% 0.068 119.2)
-
Step 950
950
#242910
oklch(26.9% 0.042 118.7)
#3F481B 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) | #4D4416 | 0.025 |
| Deuteranopia (no green cones) | #4C441E | 0.026 |
| Tritanopia (no blue cones) | #43443E | 0.058 |
| Achromatopsia (no color) | #444444 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F481B
#3F481B
oklch(38.2% 0.068 119.2)
- #483A62
#483A62
oklch(38.2% 0.068 299.3)
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 #3F481B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.039
- Green Brown #544E03 ΔE 0.044
- Navy Green #35530A ΔE 0.044
- Pine Green #0A481E ΔE 0.056
- Mud Brown #60460F ΔE 0.056
- Evergreen #05472A ΔE 0.059
- Forrest Green #154406 ΔE 0.062
- British Racing Green #05480D ΔE 0.064
Use #3F481B 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.