#3F4103
Closest named color: Dark Olive (#373E02). oklch(36.1% 0.078 111.7), rgb(63, 65, 3).
Aa
White text reads best on this color (10.66:1).
About this color
#3F4103 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.078 and its hue 112°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.017 away. White text reads best on it, at 10.66:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.96:1 |
| White text | 10.66:1 |
Values
| HEX | #3F4103 |
| RGB | rgb(63, 65, 3) |
| HSL | hsl(62, 91%, 13%) |
| OKLCH | oklch(36.1% 0.078 111.7) |
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 #3F4103 | 10.66:1 | AAA | Lc -98.6 | Preferred for body text |
| Black text on #3F4103 | 1.96:1 | Fails | Lc 9.3 | Not readable |
| #3F4103 text on white | 10.66:1 | AAA | Lc 94.6 | Preferred for body text |
| #3F4103 text on black | 1.96:1 | Fails | Lc -8.0 | 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
#F5F6F0
oklch(97.1% 0.008 114.2)
-
Step 100
100
#EAEBDF
oklch(93.6% 0.016 110.6)
-
Step 200
200
#D9DCC4
oklch(88.6% 0.032 112.8)
-
Step 300
300
#C1C59A
oklch(80.9% 0.058 112)
-
Step 400
400
#A2A760
oklch(70.8% 0.094 112.1)
-
Step 500
500
#8C902E
oklch(63.1% 0.119 111.6)
-
Step 600
600
#767900
oklch(55.5% 0.122 111.5)
-
Step 700
700
#636600
oklch(49.1% 0.109 111.8)
-
Step 800
800
#515300
oklch(42.6% 0.094 111.4)
-
Step 900
900 (this color)
#3F4103
oklch(36.1% 0.078 111.7)
-
Step 950
950
#272909
oklch(27.1% 0.049 112.6)
#3F4103 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) | #473D00 | 0.018 |
| Deuteranopia (no green cones) | #473F08 | 0.017 |
| Tritanopia (no blue cones) | #443C36 | 0.070 |
| Achromatopsia (no color) | #3E3E3E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F4103
#3F4103
oklch(36.1% 0.078 111.7)
- #3F3563
#3F3563
oklch(36.2% 0.078 292)
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 #3F4103, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.017
- Forrest Green #154406 ΔE 0.054
- Pine Green #0A481E ΔE 0.057
- Navy Green #35530A ΔE 0.057
- Green Brown #544E03 ΔE 0.057
- Pakistan Green #283618 ΔE 0.059
- British Racing Green #05480D ΔE 0.061
- Evergreen #05472A ΔE 0.062
Use #3F4103 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.