#403B1D
Closest named color: Dark Olive (#373E02). oklch(35% 0.047 100), rgb(64, 59, 29).
Aa
White text reads best on this color (11.28:1).
About this color
#403B1D is a dark, muted brown. In OKLCH its lightness is 35%, its chroma 0.047 and its hue 100°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Olive (#373E02), ΔE 0.036 away. White text reads best on it, at 11.28:1.
| Hue family | Browns |
| Lightness | dark (35%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Dark Olive (#373E02) |
| Black text | 1.86:1 |
| White text | 11.28:1 |
Values
| HEX | #403B1D |
| RGB | rgb(64, 59, 29) |
| HSL | hsl(51, 38%, 18%) |
| OKLCH | oklch(35% 0.047 100) |
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 #403B1D | 11.28:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #403B1D | 1.86:1 | Fails | Lc 7.9 | Not readable |
| #403B1D text on white | 11.28:1 | AAA | Lc 96.0 | Preferred for body text |
| #403B1D text on black | 1.86:1 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#EBEAE3
oklch(93.6% 0.009 100)
-
Step 200
200
#DCDACB
oklch(88.6% 0.02 100.6)
-
Step 300
300
#C5C2A8
oklch(80.9% 0.036 101.7)
-
Step 400
400
#A8A279
oklch(70.7% 0.057 100.7)
-
Step 500
500
#938B57
oklch(63.1% 0.072 100.6)
-
Step 600
600
#7E743C
oklch(55.5% 0.077 99.4)
-
Step 700
700
#6A622E
oklch(49.2% 0.073 100.7)
-
Step 800
800
#575027
oklch(42.8% 0.06 99.8)
-
Step 900
900 (this color)
#403B1D
oklch(35% 0.047 100)
-
Step 950
950
#2A2716
oklch(27.1% 0.029 99.4)
#403B1D 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) | #40391A | 0.006 |
| Deuteranopia (no green cones) | #423B1E | 0.004 |
| Tritanopia (no blue cones) | #453734 | 0.043 |
| Achromatopsia (no color) | #3B3B3B | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403B1D
#403B1D
oklch(35% 0.047 100)
- #353853
#353853
oklch(35% 0.047 278.8)
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 #403B1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive #373E02 ΔE 0.036
- Pakistan Green #283618 ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.054
- Onyx #343A40 ΔE 0.059
- Evergreen #05472A ΔE 0.068
- Pine Green #0A481E ΔE 0.071
- Mud Brown #60460F ΔE 0.072
- Forrest Green #154406 ΔE 0.073
Use #403B1D 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.