#3F4024
Closest named color: Dark Olive (#373E02). oklch(36.3% 0.044 110.2), rgb(63, 64, 36).
Aa
White text reads best on this color (10.65:1).
About this color
#3F4024 is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.044 and its hue 110°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.038 away. White text reads best on it, at 10.65:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.044) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.97:1 |
| White text | 10.65:1 |
Values
| HEX | #3F4024 |
| RGB | rgb(63, 64, 36) |
| HSL | hsl(62, 28%, 20%) |
| OKLCH | oklch(36.3% 0.044 110.2) |
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 #3F4024 | 10.65:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #3F4024 | 1.97:1 | Fails | Lc 9.2 | Not readable |
| #3F4024 text on white | 10.65:1 | AAA | Lc 94.7 | Preferred for body text |
| #3F4024 text on black | 1.97:1 | Fails | Lc -7.9 | 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
#F5F6F2
oklch(97.1% 0.005 117.9)
-
Step 100
100
#EAEAE3
oklch(93.5% 0.009 106.6)
-
Step 200
200
#D9DACD
oklch(88.4% 0.018 110.3)
-
Step 300
300
#C1C3AB
oklch(80.9% 0.033 111)
-
Step 400
400
#A2A47E
oklch(70.7% 0.053 110.2)
-
Step 500
500
#8B8D5D
oklch(63% 0.067 110.2)
-
Step 600
600
#767743
oklch(55.6% 0.073 109.5)
-
Step 700
700
#636434
oklch(49.1% 0.069 109.7)
-
Step 800
800
#51522C
oklch(42.8% 0.057 109.9)
-
Step 900
900 (this color)
#3F4024
oklch(36.3% 0.044 110.2)
-
Step 950
950
#272818
oklch(27.1% 0.028 111.1)
#3F4024 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) | #443E22 | 0.010 |
| Deuteranopia (no green cones) | #443F25 | 0.009 |
| Tritanopia (no blue cones) | #433D39 | 0.039 |
| Achromatopsia (no color) | #3E3E3E | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F4024
#3F4024
oklch(36.3% 0.044 110.2)
- #3D3A54
#3D3A54
oklch(36.3% 0.045 289.3)
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 #3F4024, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.047
- Pakistan Green #283618 ΔE 0.054
- Onyx #343A40 ΔE 0.058
- Evergreen #05472A ΔE 0.061
- Pine Green #0A481E ΔE 0.065
- Mud Brown #60460F ΔE 0.066
- Dark Slate Gray #2F4F4F ΔE 0.069
Use #3F4024 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.