#3F3E01
Closest named color: Dark Olive (#373E02). oklch(35.3% 0.076 108.7), rgb(63, 62, 1).
Aa
White text reads best on this color (11.04:1).
About this color
#3F3E01 is a dark, moderately saturated brown. In OKLCH its lightness is 35%, its chroma 0.076 and its hue 109°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.014 away. White text reads best on it, at 11.04:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.076) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.90:1 |
| White text | 11.04:1 |
Values
| HEX | #3F3E01 |
| RGB | rgb(63, 62, 1) |
| HSL | hsl(59, 97%, 13%) |
| OKLCH | oklch(35.3% 0.076 108.7) |
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 #3F3E01 | 11.04:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #3F3E01 | 1.90:1 | Fails | Lc 8.5 | Not readable |
| #3F3E01 text on white | 11.04:1 | AAA | Lc 95.4 | Preferred for body text |
| #3F3E01 text on black | 1.90:1 | 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
#F6F6F0
oklch(97.1% 0.008 106.5)
-
Step 100
100
#EAEBDF
oklch(93.6% 0.016 110.6)
-
Step 200
200
#DADBC4
oklch(88.4% 0.031 109)
-
Step 300
300
#C3C49A
oklch(80.9% 0.057 108.7)
-
Step 400
400
#A5A561
oklch(70.6% 0.09 108.5)
-
Step 500
500
#908F2F
oklch(63.2% 0.117 108.7)
-
Step 600
600
#7A7800
oklch(55.6% 0.12 108.6)
-
Step 700
700
#666500
oklch(49.1% 0.107 109.1)
-
Step 800
800
#545200
oklch(42.7% 0.092 108.1)
-
Step 900
900 (this color)
#3F3E01
oklch(35.3% 0.076 108.7)
-
Step 950
950
#282809
oklch(26.9% 0.048 109.2)
#3F3E01 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) | #443B00 | 0.012 |
| Deuteranopia (no green cones) | #453D06 | 0.013 |
| Tritanopia (no blue cones) | #453933 | 0.068 |
| Achromatopsia (no color) | #3C3C3C | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F3E01
#3F3E01
oklch(35.3% 0.076 108.7)
- #3A3460
#3A3460
oklch(35.3% 0.075 288.2)
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 #3F3E01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.014
- Pakistan Green #283618 ΔE 0.053
- Forrest Green #154406 ΔE 0.055
- Pine Green #0A481E ΔE 0.060
- Hunter Green #0B4008 ΔE 0.062
- British Racing Green #05480D ΔE 0.064
- Evergreen #05472A ΔE 0.065
- Green Brown #544E03 ΔE 0.065
Use #3F3E01 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.