#393343
Closest named color: Onyx (#343A40). oklch(33.4% 0.029 302), rgb(57, 51, 67).
Aa
White text reads best on this color (12.14:1).
About this color
#393343 is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.026 away. White text reads best on it, at 12.14:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.72:1 |
| White text | 12.14:1 |
Values
| HEX | #393343 |
| RGB | rgb(57, 51, 67) |
| HSL | hsl(263, 14%, 23%) |
| OKLCH | oklch(33.4% 0.029 302) |
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 #393343 | 12.14:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #393343 | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #393343 text on white | 12.14:1 | AAA | Lc 97.8 | Preferred for body text |
| #393343 text on black | 1.72:1 | 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
#F6F5F7
oklch(97.1% 0.003 308.4)
-
Step 100
100
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#DAD7E0
oklch(88.4% 0.013 301.3)
-
Step 300
300
#C3BECD
oklch(81% 0.021 301.1)
-
Step 400
400
#A49CB3
oklch(70.7% 0.034 301.4)
-
Step 500
500
#8E84A0
oklch(63.2% 0.043 301.5)
-
Step 600
600
#786D8B
oklch(55.6% 0.048 301.6)
-
Step 700
700
#655B76
oklch(49.1% 0.044 301.7)
-
Step 800
800
#534A60
oklch(42.7% 0.038 303.5)
-
Step 900
900 (this color)
#393343
oklch(33.4% 0.029 302)
-
Step 950
950
#28242E
oklch(26.9% 0.019 303.3)
#393343 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) | #303644 | 0.017 |
| Deuteranopia (no green cones) | #313643 | 0.016 |
| Tritanopia (no blue cones) | #373538 | 0.023 |
| Achromatopsia (no color) | #363636 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393343
#393343
oklch(33.4% 0.029 302)
- #343928
#343928
oklch(33.4% 0.029 121.3)
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 #393343, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.026
- Gunmetal #293241 ΔE 0.028
- Space Cadet #2B2D42 ΔE 0.033
- Dark Blue Grey #1F3B4D ΔE 0.043
- Charcoal Grey #3C4142 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.052
- Midnight Green #073B4C ΔE 0.059
- Charcoal #264653 ΔE 0.062
Use #393343 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.