#403E2D
Closest named color: Charcoal Grey (#3C4142). oklch(36.1% 0.028 102.1), rgb(64, 62, 45).
Aa
White text reads best on this color (10.79:1).
About this color
#403E2D is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.033 away. White text reads best on it, at 10.79:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.94:1 |
| White text | 10.79:1 |
Values
| HEX | #403E2D |
| RGB | rgb(64, 62, 45) |
| HSL | hsl(54, 17%, 21%) |
| OKLCH | oklch(36.1% 0.028 102.1) |
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 #403E2D | 10.79:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #403E2D | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #403E2D text on white | 10.79:1 | AAA | Lc 95.0 | Preferred for body text |
| #403E2D 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#DAD9D1
oklch(88.4% 0.011 100.8)
-
Step 300
300
#C3C1B2
oklch(80.8% 0.021 100.7)
-
Step 400
400
#A4A28A
oklch(70.7% 0.034 103.3)
-
Step 500
500
#8E8B6D
oklch(63.1% 0.043 102.8)
-
Step 600
600
#787555
oklch(55.6% 0.047 103.3)
-
Step 700
700
#656245
oklch(49.1% 0.044 102.9)
-
Step 800
800
#535039
oklch(42.8% 0.036 101.5)
-
Step 900
900 (this color)
#403E2D
oklch(36.1% 0.028 102.1)
-
Step 950
950
#28271D
oklch(27% 0.018 102.8)
#403E2D 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) | #413D2C | 0.003 |
| Deuteranopia (no green cones) | #423E2E | 0.004 |
| Tritanopia (no blue cones) | #433C39 | 0.024 |
| Achromatopsia (no color) | #3D3D3D | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403E2D
#403E2D
oklch(36.1% 0.028 102.1)
- #3B3C4C
#3B3C4C
oklch(36.2% 0.028 282.1)
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 #403E2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.033
- Onyx #343A40 ΔE 0.043
- Dark Olive #373E02 ΔE 0.054
- Pakistan Green #283618 ΔE 0.058
- Dark Slate Gray #2F4F4F ΔE 0.064
- Charcoal #264653 ΔE 0.065
- Evergreen #05472A ΔE 0.069
- Gunmetal #293241 ΔE 0.072
Use #403E2D 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.