#403D2E
Closest named color: Charcoal Grey (#3C4142). oklch(35.8% 0.025 98), rgb(64, 61, 46).
Aa
White text reads best on this color (10.90:1).
About this color
#403D2E is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.031 away. White text reads best on it, at 10.90:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.92:1 |
| White text | 10.90:1 |
Values
| HEX | #403D2E |
| RGB | rgb(64, 61, 46) |
| HSL | hsl(50, 16%, 22%) |
| OKLCH | oklch(35.8% 0.025 98) |
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 #403D2E | 10.90:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #403D2E | 1.92:1 | Fails | Lc 8.6 | Not readable |
| #403D2E text on white | 10.90:1 | AAA | Lc 95.3 | Preferred for body text |
| #403D2E 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE6
oklch(93.7% 0.005 95.1)
-
Step 200
200
#DBD9D2
oklch(88.5% 0.01 93.6)
-
Step 300
300
#C3C1B3
oklch(80.9% 0.019 100.2)
-
Step 400
400
#A5A18C
oklch(70.7% 0.03 98.2)
-
Step 500
500
#8F8A70
oklch(63.1% 0.038 98.3)
-
Step 600
600
#7A7458
oklch(55.7% 0.042 97.4)
-
Step 700
700
#666148
oklch(49% 0.038 98.1)
-
Step 800
800
#534F3B
oklch(42.6% 0.032 98.1)
-
Step 900
900 (this color)
#403D2E
oklch(35.8% 0.025 98)
-
Step 950
950
#28271E
oklch(27.1% 0.016 102.2)
#403D2E 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) | #403C2D | 0.003 |
| Deuteranopia (no green cones) | #413D2E | 0.002 |
| Tritanopia (no blue cones) | #433B39 | 0.022 |
| Achromatopsia (no color) | #3D3D3D | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403D2E
#403D2E
oklch(35.8% 0.025 98)
- #393C4A
#393C4A
oklch(35.9% 0.025 275.6)
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 #403D2E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.031
- Onyx #343A40 ΔE 0.039
- Dark Olive #373E02 ΔE 0.056
- Pakistan Green #283618 ΔE 0.058
- Charcoal #264653 ΔE 0.065
- Dark Slate Gray #2F4F4F ΔE 0.065
- Gunmetal #293241 ΔE 0.069
- Dark Blue Grey #1F3B4D ΔE 0.070
Use #403D2E 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.