#403F1A
Closest named color: Dark Olive (#373E02). oklch(35.9% 0.056 107.5), rgb(64, 63, 26).
Aa
White text reads best on this color (10.80:1).
About this color
#403F1A is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.056 and its hue 107°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.028 away. White text reads best on it, at 10.80:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.94:1 |
| White text | 10.80:1 |
Values
| HEX | #403F1A |
| RGB | rgb(64, 63, 26) |
| HSL | hsl(58, 42%, 18%) |
| OKLCH | oklch(35.9% 0.056 107.5) |
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 #403F1A | 10.80:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #403F1A | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #403F1A text on white | 10.80:1 | AAA | Lc 95.0 | Preferred for body text |
| #403F1A text on black | 1.94:1 | 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
#F6F6F1
oklch(97.2% 0.007 106.5)
-
Step 100
100
#EAEBE1
oklch(93.7% 0.013 111.3)
-
Step 200
200
#DADAC9
oklch(88.4% 0.023 106.9)
-
Step 300
300
#C3C3A4
oklch(80.9% 0.042 107.3)
-
Step 400
400
#A5A473
oklch(70.7% 0.067 107)
-
Step 500
500
#8F8D4E
oklch(63.1% 0.085 107)
-
Step 600
600
#797730
oklch(55.6% 0.093 107.6)
-
Step 700
700
#666423
oklch(49.1% 0.086 107.5)
-
Step 800
800
#53521F
oklch(42.8% 0.071 108)
-
Step 900
900 (this color)
#403F1A
oklch(35.9% 0.056 107.5)
-
Step 950
950
#282813
oklch(27.1% 0.035 108.5)
#403F1A 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) | #443D16 | 0.008 |
| Deuteranopia (no green cones) | #453E1C | 0.010 |
| Tritanopia (no blue cones) | #453B37 | 0.051 |
| Achromatopsia (no color) | #3D3D3D | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403F1A
#403F1A
oklch(35.9% 0.056 107.5)
- #3B3859
#3B3859
oklch(35.9% 0.057 287.4)
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 #403F1A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.028
- Pakistan Green #283618 ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.059
- Evergreen #05472A ΔE 0.062
- Pine Green #0A481E ΔE 0.063
- Mud Brown #60460F ΔE 0.064
- Green Brown #544E03 ΔE 0.065
- Forrest Green #154406 ΔE 0.065
Use #403F1A 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.