#403C2E
Closest named color: Charcoal Grey (#3C4142). oklch(35.6% 0.024 94), rgb(64, 60, 46).
Aa
White text reads best on this color (11.03:1).
About this color
#403C2E is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.024. 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 11.03:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.90:1 |
| White text | 11.03:1 |
Values
| HEX | #403C2E |
| RGB | rgb(64, 60, 46) |
| HSL | hsl(47, 16%, 22%) |
| OKLCH | oklch(35.6% 0.024 94) |
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 #403C2E | 11.03:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #403C2E | 1.90:1 | Fails | Lc 8.4 | Not readable |
| #403C2E text on white | 11.03:1 | AAA | Lc 95.5 | Preferred for body text |
| #403C2E text on black | 1.90:1 | 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
#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
#C4C1B4
oklch(81% 0.018 96.2)
-
Step 400
400
#A6A18D
oklch(70.8% 0.029 95.5)
-
Step 500
500
#908971
oklch(63% 0.036 93.7)
-
Step 600
600
#7B7359
oklch(55.6% 0.039 93)
-
Step 700
700
#676149
oklch(49.1% 0.037 95.7)
-
Step 800
800
#544F3C
oklch(42.7% 0.031 95.1)
-
Step 900
900 (this color)
#403C2E
oklch(35.6% 0.024 94)
-
Step 950
950
#29261E
oklch(26.9% 0.015 89.9)
#403C2E 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) | #3F3B2D | 0.004 |
| Deuteranopia (no green cones) | #403D2E | 0.003 |
| Tritanopia (no blue cones) | #433A38 | 0.021 |
| Achromatopsia (no color) | #3C3C3C | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403C2E
#403C2E
oklch(35.6% 0.024 94)
- #383B49
#383B49
oklch(35.5% 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 #403C2E, 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 0.038
- Pakistan Green #283618 ΔE 0.057
- Dark Olive #373E02 ΔE 0.058
- Charcoal #264653 ΔE 0.065
- Gunmetal #293241 ΔE 0.067
- Dark Slate Gray #2F4F4F ΔE 0.068
- Dark Blue Grey #1F3B4D ΔE 0.069
Use #403C2E 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.