#393D5D
Closest named color: Dark Grey Blue (#29465B). oklch(37.1% 0.055 277.9), rgb(57, 61, 93).
Aa
White text reads best on this color (10.50:1).
About this color
#393D5D is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.055 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 10.50:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.99:1 |
| White text | 10.50:1 |
Values
| HEX | #393D5D |
| RGB | rgb(57, 61, 93) |
| HSL | hsl(233, 24%, 29%) |
| OKLCH | oklch(37.1% 0.055 277.9) |
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 #393D5D | 10.50:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #393D5D | 1.99:1 | Fails | Lc 9.6 | Not readable |
| #393D5D text on white | 10.50:1 | AAA | Lc 94.3 | Preferred for body text |
| #393D5D text on black | 1.99:1 | Fails | Lc -8.2 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#BABFDC
oklch(81% 0.041 277.7)
-
Step 400
400
#969DCA
oklch(70.7% 0.066 277.7)
-
Step 500
500
#7D84BC
oklch(63% 0.085 278.2)
-
Step 600
600
#676EA9
oklch(55.7% 0.092 277.8)
-
Step 700
700
#555B91
oklch(49% 0.087 277.9)
-
Step 800
800
#464B75
oklch(42.7% 0.07 277.8)
-
Step 900
900 (this color)
#393D5D
oklch(37.1% 0.055 277.9)
-
Step 950
950
#222537
oklch(27% 0.034 276.6)
#393D5D 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) | #33415E | 0.014 |
| Deuteranopia (no green cones) | #313E5C | 0.012 |
| Tritanopia (no blue cones) | #2F4349 | 0.048 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393D5D
#393D5D
oklch(37.1% 0.055 277.9)
- #48401B
#48401B
oklch(37.1% 0.055 97.3)
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 #393D5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Charcoal #264653 ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.050
- Onyx #343A40 ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.053
- Gunmetal #293241 ΔE 0.062
- Twilight Blue #0A437A ΔE 0.064
Use #393D5D 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.