#3F401E
Closest named color: Dark Olive (#373E02). oklch(36.2% 0.052 110.2), rgb(63, 64, 30).
Aa
White text reads best on this color (10.69:1).
About this color
#3F401E is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.052 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 0.031 away. White text reads best on it, at 10.69:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.052) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.96:1 |
| White text | 10.69:1 |
Values
| HEX | #3F401E |
| RGB | rgb(63, 64, 30) |
| HSL | hsl(62, 36%, 18%) |
| OKLCH | oklch(36.2% 0.052 110.2) |
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 #3F401E | 10.69:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #3F401E | 1.96:1 | Fails | Lc 9.1 | Not readable |
| #3F401E text on white | 10.69:1 | AAA | Lc 94.8 | Preferred for body text |
| #3F401E text on black | 1.96:1 | Fails | Lc -7.8 | 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
#EAEBE2
oklch(93.7% 0.012 111.8)
-
Step 200
200
#D9DBCB
oklch(88.5% 0.022 112.6)
-
Step 300
300
#C1C3A7
oklch(80.8% 0.038 110.6)
-
Step 400
400
#A2A577
oklch(70.8% 0.063 111)
-
Step 500
500
#8C8E53
oklch(63.1% 0.081 110.2)
-
Step 600
600
#767837
oklch(55.6% 0.088 110.5)
-
Step 700
700
#63652A
oklch(49.2% 0.081 110.8)
-
Step 800
800
#515224
oklch(42.7% 0.066 110)
-
Step 900
900 (this color)
#3F401E
oklch(36.2% 0.052 110.2)
-
Step 950
950
#272814
oklch(27% 0.034 110.9)
#3F401E 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) | #453D1B | 0.013 |
| Deuteranopia (no green cones) | #453F20 | 0.012 |
| Tritanopia (no blue cones) | #433C38 | 0.047 |
| Achromatopsia (no color) | #3E3E3E | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F401E
#3F401E
oklch(36.2% 0.052 110.2)
- #3D3957
#3D3957
oklch(36.2% 0.051 289.7)
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 #3F401E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.031
- Pakistan Green #283618 ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.055
- Evergreen #05472A ΔE 0.060
- Pine Green #0A481E ΔE 0.062
- Mud Brown #60460F ΔE 0.065
- Onyx #343A40 ΔE 0.065
- Green Brown #544E03 ΔE 0.065
Use #3F401E 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.