#403E30
Closest named color: Charcoal Grey (#3C4142). oklch(36.1% 0.023 100.7), rgb(64, 62, 48).
Aa
White text reads best on this color (10.77:1).
About this color
#403E30 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.028 away. White text reads best on it, at 10.77:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #403E30 |
| RGB | rgb(64, 62, 48) |
| HSL | hsl(53, 14%, 22%) |
| OKLCH | oklch(36.1% 0.023 100.7) |
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 #403E30 | 10.77:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #403E30 | 1.94:1 | Fails | Lc 8.9 | Not readable |
| #403E30 text on white | 10.77:1 | AAA | Lc 95.0 | Preferred for body text |
| #403E30 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EAEAE6
oklch(93.6% 0.005 106.5)
-
Step 200
200
#DAD9D2
oklch(88.4% 0.01 100)
-
Step 300
300
#C3C1B5
oklch(80.9% 0.017 99)
-
Step 400
400
#A4A18E
oklch(70.6% 0.027 99.7)
-
Step 500
500
#8E8A72
oklch(63% 0.035 99.5)
-
Step 600
600
#78745A
oklch(55.5% 0.039 100.2)
-
Step 700
700
#65624A
oklch(49.2% 0.037 101.7)
-
Step 800
800
#52503D
oklch(42.8% 0.03 102.6)
-
Step 900
900 (this color)
#403E30
oklch(36.1% 0.023 100.7)
-
Step 950
950
#28271F
oklch(27.1% 0.014 101.4)
#403E30 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) | #413D2F | 0.003 |
| Deuteranopia (no green cones) | #413E30 | 0.002 |
| Tritanopia (no blue cones) | #433C3A | 0.021 |
| Achromatopsia (no color) | #3E3E3E | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #403E30
#403E30
oklch(36.1% 0.023 100.7)
- #3B3C4A
#3B3C4A
oklch(36.1% 0.024 281.9)
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 #403E30, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.028
- Onyx #343A40 ΔE 0.039
- Dark Olive #373E02 ΔE 0.058
- Pakistan Green #283618 ΔE 0.060
- Charcoal #264653 ΔE 0.062
- Dark Slate Gray #2F4F4F ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.069
- Gunmetal #293241 ΔE 0.070
Use #403E30 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.