#403D2A
Closest named color: Charcoal Grey (#3C4142). oklch(35.7% 0.031 100.2), rgb(64, 61, 42).
Aa
White text reads best on this color (10.94:1).
About this color
#403D2A is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.031 and its hue 100°. Its hue sits on the warm side of the wheel. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.037 away. White text reads best on it, at 10.94:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.031) |
| Temperature | warm |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #403D2A |
| RGB | rgb(64, 61, 42) |
| HSL | hsl(52, 21%, 21%) |
| OKLCH | oklch(35.7% 0.031 100.2) |
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 #403D2A | 10.94:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #403D2A | 1.91:1 | Fails | Lc 8.6 | Not readable |
| #403D2A text on white | 10.94:1 | AAA | Lc 95.3 | Preferred for body text |
| #403D2A text on black | 1.91:1 | Fails | Lc -7.3 | 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE5
oklch(93.6% 0.007 97.4)
-
Step 200
200
#DBD9D0
oklch(88.4% 0.012 96.4)
-
Step 300
300
#C4C1B0
oklch(80.9% 0.024 98.7)
-
Step 400
400
#A6A287
oklch(70.8% 0.038 100.3)
-
Step 500
500
#908B69
oklch(63.2% 0.049 100.6)
-
Step 600
600
#7A7451
oklch(55.5% 0.051 99.6)
-
Step 700
700
#676241
oklch(49.2% 0.049 100.6)
-
Step 800
800
#545036
oklch(42.8% 0.04 100.5)
-
Step 900
900 (this color)
#403D2A
oklch(35.7% 0.031 100.2)
-
Step 950
950
#28271C
oklch(27% 0.019 103.3)
#403D2A 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) | #413C29 | 0.003 |
| Deuteranopia (no green cones) | #423D2B | 0.004 |
| Tritanopia (no blue cones) | #433A38 | 0.029 |
| Achromatopsia (no color) | #3D3D3D | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403D2A
#403D2A
oklch(35.7% 0.031 100.2)
- #393B4D
#393B4D
oklch(35.8% 0.031 279.7)
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 #403D2A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.037
- Onyx #343A40 ΔE 0.045
- Dark Olive #373E02 ΔE 0.050
- Pakistan Green #283618 ΔE 0.055
- Evergreen #05472A ΔE 0.068
- Dark Slate Gray #2F4F4F ΔE 0.069
- Charcoal #264653 ΔE 0.069
- Gunmetal #293241 ΔE 0.073
Use #403D2A 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.