#40332F
Closest named color: Onyx (#343A40). oklch(33.4% 0.02 37.8), rgb(64, 51, 47).
Aa
White text reads best on this color (12.12:1).
About this color
#40332F is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.034 away. White text reads best on it, at 12.12:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.73:1 |
| White text | 12.12:1 |
Values
| HEX | #40332F |
| RGB | rgb(64, 51, 47) |
| HSL | hsl(14, 15%, 22%) |
| OKLCH | oklch(33.4% 0.02 37.8) |
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 #40332F | 12.12:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #40332F | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #40332F text on white | 12.12:1 | AAA | Lc 97.7 | Preferred for body text |
| #40332F text on black | 1.73:1 | 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
#F7F5F4
oklch(97.1% 0.003 48.7)
-
Step 100
100
#EDE9E8
oklch(93.7% 0.005 34.3)
-
Step 200
200
#DED7D5
oklch(88.4% 0.008 36.6)
-
Step 300
300
#CABDBA
oklch(80.8% 0.015 33.1)
-
Step 400
400
#AF9C96
oklch(70.8% 0.024 38.3)
-
Step 500
500
#9B837C
oklch(63% 0.031 36.8)
-
Step 600
600
#866D65
oklch(55.7% 0.034 38.5)
-
Step 700
700
#715B54
oklch(49.1% 0.031 38.4)
-
Step 800
800
#5C4A45
oklch(42.6% 0.026 36)
-
Step 900
900 (this color)
#40332F
oklch(33.4% 0.02 37.8)
-
Step 950
950
#2C2422
oklch(26.9% 0.013 34.3)
#40332F 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) | #36342F | 0.018 |
| Deuteranopia (no green cones) | #39372F | 0.017 |
| Tritanopia (no blue cones) | #433132 | 0.011 |
| Achromatopsia (no color) | #363636 | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40332F
#40332F
oklch(33.4% 0.02 37.8)
- #2B393D
#2B393D
oklch(33.4% 0.02 217.1)
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 #40332F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.034
- Charcoal Grey #3C4142 ΔE 0.046
- Gunmetal #293241 ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.058
- Pakistan Green #283618 ΔE 0.061
- Dark Blue Grey #1F3B4D ΔE 0.066
- Charcoal #264653 ΔE 0.076
- Dark Olive #373E02 ΔE 0.077
Use #40332F 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.