#3F491D
Closest named color: Dark Olive (#373E02). oklch(38.5% 0.067 120.3), rgb(63, 73, 29).
Aa
White text reads best on this color (9.62:1).
About this color
#3F491D is a dark, muted brown. In OKLCH its lightness is 39%, its chroma 0.067 and its hue 120°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.042 away. White text reads best on it, at 9.62:1.
| Hue family | Browns |
| Lightness | dark (39%) |
| Chroma | muted (0.067) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 2.18:1 |
| White text | 9.62:1 |
Values
| HEX | #3F491D |
| RGB | rgb(63, 73, 29) |
| HSL | hsl(74, 43%, 20%) |
| OKLCH | oklch(38.5% 0.067 120.3) |
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 #3F491D | 9.62:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #3F491D | 2.18:1 | Fails | Lc 11.7 | Not readable |
| #3F491D text on white | 9.62:1 | AAA | Lc 92.2 | Preferred for body text |
| #3F491D text on black | 2.18:1 | Fails | Lc -10.2 | 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
#D6DCC8
oklch(88.4% 0.028 120.6)
-
Step 300
300
#BCC6A2
oklch(80.9% 0.05 120.1)
-
Step 400
400
#9AA86F
oklch(70.6% 0.08 119.7)
-
Step 500
500
#819348
oklch(63.2% 0.103 120.6)
-
Step 600
600
#6B7D27
oklch(55.7% 0.112 120.4)
-
Step 700
700
#596919
oklch(49.1% 0.104 120.4)
-
Step 800
800
#495618
oklch(42.8% 0.087 120.4)
-
Step 900
900 (this color)
#3F491D
oklch(38.5% 0.067 120.3)
-
Step 950
950
#242911
oklch(26.9% 0.041 118.9)
#3F491D 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) | #4D4519 | 0.024 |
| Deuteranopia (no green cones) | #4C4520 | 0.026 |
| Tritanopia (no blue cones) | #42453F | 0.056 |
| Achromatopsia (no color) | #454545 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F491D
#3F491D
oklch(38.5% 0.067 120.3)
- #4A3B62
#4A3B62
oklch(38.6% 0.067 301)
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 #3F491D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.042
- Green Brown #544E03 ΔE 0.043
- Navy Green #35530A ΔE 0.043
- Mud Brown #60460F ΔE 0.056
- Pine Green #0A481E ΔE 0.057
- Evergreen #05472A ΔE 0.059
- Pine #2B5D34 ΔE 0.062
- Forrest Green #154406 ΔE 0.063
Use #3F491D 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.