#403E1B
Closest named color: Dark Olive (#373E02). oklch(35.7% 0.053 105.8), rgb(64, 62, 27).
Aa
White text reads best on this color (10.92:1).
About this color
#403E1B is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.053 and its hue 106°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.030 away. White text reads best on it, at 10.92:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.053) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.92:1 |
| White text | 10.92:1 |
Values
| HEX | #403E1B |
| RGB | rgb(64, 62, 27) |
| HSL | hsl(57, 41%, 18%) |
| OKLCH | oklch(35.7% 0.053 105.8) |
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 #403E1B | 10.92:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #403E1B | 1.92:1 | Fails | Lc 8.6 | Not readable |
| #403E1B text on white | 10.92:1 | AAA | Lc 95.3 | Preferred for body text |
| #403E1B text on black | 1.92:1 | Fails | Lc -7.4 | 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
#F6F6F2
oklch(97.2% 0.005 106.5)
-
Step 100
100
#EBEAE2
oklch(93.6% 0.011 100.8)
-
Step 200
200
#DBDACA
oklch(88.5% 0.022 103.9)
-
Step 300
300
#C4C3A5
oklch(81% 0.041 105.7)
-
Step 400
400
#A5A375
oklch(70.6% 0.063 105.8)
-
Step 500
500
#908D51
oklch(63.2% 0.081 106)
-
Step 600
600
#7A7634
oklch(55.5% 0.088 105.7)
-
Step 700
700
#676326
oklch(49% 0.082 105.5)
-
Step 800
800
#545121
oklch(42.7% 0.068 105.6)
-
Step 900
900 (this color)
#403E1B
oklch(35.7% 0.053 105.8)
-
Step 950
950
#292714
oklch(26.9% 0.032 103.1)
#403E1B 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) | #433C18 | 0.007 |
| Deuteranopia (no green cones) | #443D1D | 0.009 |
| Tritanopia (no blue cones) | #453A36 | 0.048 |
| Achromatopsia (no color) | #3D3D3D | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403E1B
#403E1B
oklch(35.7% 0.053 105.8)
- #3A3857
#3A3857
oklch(35.7% 0.053 286.3)
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 #403E1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.030
- Pakistan Green #283618 ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.057
- Evergreen #05472A ΔE 0.063
- Pine Green #0A481E ΔE 0.065
- Onyx #343A40 ΔE 0.065
- Mud Brown #60460F ΔE 0.066
- Forrest Green #154406 ΔE 0.067
Use #403E1B 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.