#393543
Closest named color: Onyx (#343A40). oklch(33.9% 0.025 298.1), rgb(57, 53, 67).
Aa
White text reads best on this color (11.90:1).
About this color
#393543 is a dark close to neutral grey. In OKLCH its lightness is 34%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.020 away. White text reads best on it, at 11.90:1.
| Hue family | Neutrals |
| Lightness | dark (34%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.76:1 |
| White text | 11.90:1 |
Values
| HEX | #393543 |
| RGB | rgb(57, 53, 67) |
| HSL | hsl(257, 12%, 24%) |
| OKLCH | oklch(33.9% 0.025 298.1) |
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 #393543 | 11.90:1 | AAA | Lc -100.9 | Preferred for body text |
| Black text on #393543 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #393543 text on white | 11.90:1 | AAA | Lc 97.3 | Preferred for body text |
| #393543 text on black | 1.76:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#EAE9ED
oklch(93.6% 0.005 297.7)
-
Step 200
200
#DAD8DF
oklch(88.6% 0.01 299.2)
-
Step 300
300
#C2BECB
oklch(80.9% 0.019 300)
-
Step 400
400
#A29DB1
oklch(70.7% 0.029 297.1)
-
Step 500
500
#8C859E
oklch(63.1% 0.038 298.1)
-
Step 600
600
#766E89
oklch(55.5% 0.042 298.6)
-
Step 700
700
#635C74
oklch(49% 0.039 298.3)
-
Step 800
800
#514B5E
oklch(42.6% 0.032 299.5)
-
Step 900
900 (this color)
#393543
oklch(33.9% 0.025 298.1)
-
Step 950
950
#27252D
oklch(27% 0.015 296.8)
#393543 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) | #323744 | 0.013 |
| Deuteranopia (no green cones) | #333743 | 0.011 |
| Tritanopia (no blue cones) | #37373A | 0.020 |
| Achromatopsia (no color) | #373737 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393543
#393543
oklch(33.9% 0.025 298.1)
- #363A2B
#363A2B
oklch(34% 0.026 119.9)
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 #393543, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.020
- Gunmetal #293241 ΔE 0.030
- Space Cadet #2B2D42 ΔE 0.038
- Dark Blue Grey #1F3B4D ΔE 0.040
- Charcoal Grey #3C4142 ΔE 0.041
- Prussian Blue #1D3557 ΔE 0.053
- Charcoal #264653 ΔE 0.056
- Midnight Green #073B4C ΔE 0.057
Use #393543 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.