#402F33
Closest named color: Onyx (#343A40). oklch(32.6% 0.026 3), rgb(64, 47, 51).
Aa
White text reads best on this color (12.55:1).
About this color
#402F33 is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.026. 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 12.55:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.67:1 |
| White text | 12.55:1 |
Values
| HEX | #402F33 |
| RGB | rgb(64, 47, 51) |
| HSL | hsl(346, 15%, 22%) |
| OKLCH | oklch(32.6% 0.026 3) |
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 #402F33 | 12.55:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #402F33 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #402F33 text on white | 12.55:1 | AAA | Lc 98.5 | Preferred for body text |
| #402F33 text on black | 1.67:1 | 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
#E0D6D8
oklch(88.5% 0.011 3.5)
-
Step 300
300
#CCBCBF
oklch(80.9% 0.019 4.6)
-
Step 400
400
#B2999F
oklch(70.7% 0.031 1.7)
-
Step 500
500
#9F8087
oklch(63.1% 0.039 3.1)
-
Step 600
600
#8A6971
oklch(55.6% 0.044 2.5)
-
Step 700
700
#75585E
oklch(49.2% 0.039 4.8)
-
Step 800
800
#5F484D
oklch(42.8% 0.032 4)
-
Step 900
900 (this color)
#402F33
oklch(32.6% 0.026 3)
-
Step 950
950
#2E2326
oklch(27% 0.017 0.2)
#402F33 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) | #313233 | 0.028 |
| Deuteranopia (no green cones) | #353533 | 0.027 |
| Tritanopia (no blue cones) | #432E30 | 0.007 |
| Achromatopsia (no color) | #333333 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402F33
#402F33
oklch(32.6% 0.026 3)
- #253935
#253935
oklch(32.6% 0.027 180.7)
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 #402F33, 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 0.045
- Space Cadet #2B2D42 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.066
- Jet #212529 ΔE 0.071
- Pakistan Green #283618 ΔE 0.073
- Oxford Blue #1B263B ΔE 0.078
Use #402F33 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.