#403F09
Closest named color: Dark Olive (#373E02). oklch(35.8% 0.071 108.4), rgb(64, 63, 9).
Aa
White text reads best on this color (10.86:1).
About this color
#403F09 is a dark, moderately saturated brown. In OKLCH its lightness is 36%, its chroma 0.071 and its hue 108°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.018 away. White text reads best on it, at 10.86:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #403F09 |
| RGB | rgb(64, 63, 9) |
| HSL | hsl(59, 75%, 14%) |
| OKLCH | oklch(35.8% 0.071 108.4) |
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 #403F09 | 10.86:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #403F09 | 1.93:1 | Fails | Lc 8.8 | Not readable |
| #403F09 text on white | 10.86:1 | AAA | Lc 95.1 | Preferred for body text |
| #403F09 text on black | 1.93:1 | Fails | Lc -7.6 | 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
#DADBC5
oklch(88.5% 0.03 109.1)
-
Step 300
300
#C3C49C
oklch(80.9% 0.054 108.7)
-
Step 400
400
#A5A565
oklch(70.7% 0.085 108.4)
-
Step 500
500
#8F8E38
oklch(63% 0.108 108.5)
-
Step 600
600
#7A7806
oklch(55.6% 0.119 108.5)
-
Step 700
700
#676500
oklch(49.2% 0.106 108.4)
-
Step 800
800
#545202
oklch(42.7% 0.091 108.1)
-
Step 900
900 (this color)
#403F09
oklch(35.8% 0.071 108.4)
-
Step 950
950
#28280B
oklch(26.9% 0.046 109.1)
#403F09 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) | #453C01 | 0.012 |
| Deuteranopia (no green cones) | #463E0D | 0.012 |
| Tritanopia (no blue cones) | #453A35 | 0.065 |
| Achromatopsia (no color) | #3D3D3D | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403F09
#403F09
oklch(35.8% 0.071 108.4)
- #3B365F
#3B365F
oklch(35.8% 0.07 287.9)
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 #403F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.018
- Pakistan Green #283618 ΔE 0.054
- Forrest Green #154406 ΔE 0.058
- Pine Green #0A481E ΔE 0.060
- Green Brown #544E03 ΔE 0.061
- Evergreen #05472A ΔE 0.064
- Navy Green #35530A ΔE 0.065
- Mud Brown #60460F ΔE 0.065
Use #403F09 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.