#393A7D
Closest named color: Dark Slate Blue (#483D8B). oklch(38.5% 0.111 279.2), rgb(57, 58, 125).
Aa
White text reads best on this color (10.11:1).
About this color
#393A7D is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.111 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 10.11:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #393A7D |
| RGB | rgb(57, 58, 125) |
| HSL | hsl(239, 37%, 36%) |
| OKLCH | oklch(38.5% 0.111 279.2) |
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 #393A7D | 10.11:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #393A7D | 2.07:1 | Fails | Lc 10.7 | Not readable |
| #393A7D text on white | 10.11:1 | AAA | Lc 93.3 | Preferred for body text |
| #393A7D text on black | 2.07:1 | Fails | Lc -9.2 | 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
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9FA
oklch(93.7% 0.023 277.9)
-
Step 200
200
#D2D7F8
oklch(88.6% 0.046 278.6)
-
Step 300
300
#B5BCF6
oklch(81% 0.082 279)
-
Step 400
400
#9096F2
oklch(70.7% 0.134 279.5)
-
Step 500
500
#7679ED
oklch(63% 0.171 279.2)
-
Step 600
600
#615FDB
oklch(55.5% 0.184 279.3)
-
Step 700
700
#514EBE
oklch(49.2% 0.171 279.3)
-
Step 800
800
#42409A
oklch(42.6% 0.143 279.4)
-
Step 900
900 (this color)
#393A7D
oklch(38.5% 0.111 279.2)
-
Step 950
950
#202148
oklch(27% 0.071 279.4)
#393A7D 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) | #17447F | 0.044 |
| Deuteranopia (no green cones) | #0F3F7C | 0.046 |
| Tritanopia (no blue cones) | #1C4955 | 0.097 |
| Achromatopsia (no color) | #424242 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393A7D
#393A7D
oklch(38.5% 0.111 279.2)
- #4E4400
#4E4400
oklch(38.5% 0.08 99.8)
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 #393A7D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.050
- Twilight Blue #0A437A ΔE 0.050
- Cobalt #1E488F ΔE 0.051
- Light Navy #155084 ΔE 0.066
- Marine Blue #01386A ΔE 0.068
- Dusk Blue #26538D ΔE 0.071
- Twilight #4E518B ΔE 0.076
Use #393A7D 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.