#393A48
Closest named color: Onyx (#343A40). oklch(35.3% 0.024 281.9), rgb(57, 58, 72).
Aa
White text reads best on this color (11.21:1).
About this color
#393A48 is a dark close to neutral grey. In OKLCH its lightness is 35%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.017 away. White text reads best on it, at 11.21:1.
| Hue family | Neutrals |
| Lightness | dark (35%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.87:1 |
| White text | 11.21:1 |
Values
| HEX | #393A48 |
| RGB | rgb(57, 58, 72) |
| HSL | hsl(236, 12%, 25%) |
| OKLCH | oklch(35.3% 0.024 281.9) |
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 #393A48 | 11.21:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #393A48 | 1.87:1 | Fails | Lc 8.0 | Not readable |
| #393A48 text on white | 11.21:1 | AAA | Lc 95.9 | Preferred for body text |
| #393A48 text on black | 1.87:1 | 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
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D8D8E0
oklch(88.5% 0.011 286.2)
-
Step 300
300
#BEBFCC
oklch(80.8% 0.018 282.5)
-
Step 400
400
#9D9FB3
oklch(70.7% 0.029 281.1)
-
Step 500
500
#8587A0
oklch(63% 0.037 281.7)
-
Step 600
600
#6F718B
oklch(55.6% 0.04 281.5)
-
Step 700
700
#5D5E76
oklch(49% 0.038 283)
-
Step 800
800
#4C4D60
oklch(42.7% 0.031 282.6)
-
Step 900
900 (this color)
#393A48
oklch(35.3% 0.024 281.9)
-
Step 950
950
#25262E
oklch(27.1% 0.015 279.7)
#393A48 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) | #363B49 | 0.005 |
| Deuteranopia (no green cones) | #363A48 | 0.005 |
| Tritanopia (no blue cones) | #363C3F | 0.020 |
| Achromatopsia (no color) | #3B3B3B | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393A48
#393A48
oklch(35.3% 0.024 281.9)
- #3E3C2D
#3E3C2D
oklch(35.4% 0.025 101.2)
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 #393A48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.017
- Charcoal Grey #3C4142 ΔE 0.029
- Dark Blue Grey #1F3B4D ΔE 0.036
- Gunmetal #293241 ΔE 0.039
- Charcoal #264653 ΔE 0.042
- Dark Grey Blue #29465B ΔE 0.045
- Space Cadet #2B2D42 ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.053
Use #393A48 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.