#402F31
Closest named color: Onyx (#343A40). oklch(32.5% 0.025 10.7), rgb(64, 47, 49).
Aa
White text reads best on this color (12.58:1).
About this color
#402F31 is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.039 away. White text reads best on it, at 12.58:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.66:1 |
| White text | 12.58:1 |
Values
| HEX | #402F31 |
| RGB | rgb(64, 47, 49) |
| HSL | hsl(353, 15%, 22%) |
| OKLCH | oklch(32.5% 0.025 10.7) |
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 #402F31 | 12.58:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #402F31 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #402F31 text on white | 12.58:1 | AAA | Lc 98.5 | Preferred for body text |
| #402F31 text on black | 1.66:1 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EDE8E9
oklch(93.5% 0.006 3.3)
-
Step 200
200
#E0D6D7
oklch(88.4% 0.011 10.4)
-
Step 300
300
#CCBCBE
oklch(80.9% 0.018 8.9)
-
Step 400
400
#B2999C
oklch(70.6% 0.03 9.7)
-
Step 500
500
#9F8084
oklch(63% 0.039 9.5)
-
Step 600
600
#8A696D
oklch(55.5% 0.043 10.4)
-
Step 700
700
#75585B
oklch(49.1% 0.039 11.7)
-
Step 800
800
#5F484B
oklch(42.7% 0.032 9.7)
-
Step 900
900 (this color)
#402F31
oklch(32.5% 0.025 10.7)
-
Step 950
950
#2E2324
oklch(26.9% 0.017 12.1)
#402F31 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) | #323131 | 0.026 |
| Deuteranopia (no green cones) | #363431 | 0.023 |
| Tritanopia (no blue cones) | #432E30 | 0.006 |
| Achromatopsia (no color) | #333333 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402F31
#402F31
oklch(32.5% 0.025 10.7)
- #253837
#253837
oklch(32.4% 0.025 191.9)
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 #402F31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.039
- Gunmetal #293241 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.050
- Charcoal Grey #3C4142 ΔE 0.056
- Dark Blue Grey #1F3B4D ΔE 0.067
- Pakistan Green #283618 ΔE 0.070
- Jet #212529 ΔE 0.071
- Chocolate Brown #411900 ΔE 0.078
Use #402F31 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.