#403C2B
Closest named color: Charcoal Grey (#3C4142). oklch(35.5% 0.028 96.4), rgb(64, 60, 43).
Aa
White text reads best on this color (11.05:1).
About this color
#403C2B 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 0.036 away. White text reads best on it, at 11.05:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #403C2B |
| RGB | rgb(64, 60, 43) |
| HSL | hsl(49, 20%, 21%) |
| OKLCH | oklch(35.5% 0.028 96.4) |
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 #403C2B | 11.05:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #403C2B | 1.89:1 | Fails | Lc 8.3 | Not readable |
| #403C2B text on white | 11.05:1 | AAA | Lc 95.6 | Preferred for body text |
| #403C2B text on black | 1.89:1 | 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
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE5
oklch(93.6% 0.007 97.4)
-
Step 200
200
#DBD9D1
oklch(88.5% 0.011 95.2)
-
Step 300
300
#C4C1B2
oklch(80.9% 0.021 97.6)
-
Step 400
400
#A6A189
oklch(70.7% 0.034 97.5)
-
Step 500
500
#918A6C
oklch(63.1% 0.044 96.5)
-
Step 600
600
#7B7454
oklch(55.7% 0.047 97.3)
-
Step 700
700
#686144
oklch(49.1% 0.044 96.2)
-
Step 800
800
#554F38
oklch(42.7% 0.037 95.2)
-
Step 900
900 (this color)
#403C2B
oklch(35.5% 0.028 96.4)
-
Step 950
950
#29271D
oklch(27.2% 0.018 98)
#403C2B 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) | #3F3B2A | 0.004 |
| Deuteranopia (no green cones) | #413C2C | 0.003 |
| Tritanopia (no blue cones) | #433937 | 0.026 |
| Achromatopsia (no color) | #3C3C3C | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403C2B
#403C2B
oklch(35.5% 0.028 96.4)
- #383B4B
#383B4B
oklch(35.6% 0.028 276.6)
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 #403C2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.036
- Onyx #343A40 ΔE 0.042
- Dark Olive #373E02 ΔE 0.053
- Pakistan Green #283618 ΔE 0.054
- Charcoal #264653 ΔE 0.069
- Dark Slate Gray #2F4F4F ΔE 0.070
- Gunmetal #293241 ΔE 0.070
- Evergreen #05472A ΔE 0.071
Use #403C2B 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.