#393369
Closest named color: Prussian Blue (#1D3557). oklch(35.6% 0.091 285.9), rgb(57, 51, 105).
Aa
White text reads best on this color (11.34:1).
About this color
#393369 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.091 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.054 away. White text reads best on it, at 11.34:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.85:1 |
| White text | 11.34:1 |
Values
| HEX | #393369 |
| RGB | rgb(57, 51, 105) |
| HSL | hsl(247, 35%, 31%) |
| OKLCH | oklch(35.6% 0.091 285.9) |
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 #393369 | 11.34:1 | AAA | Lc -99.8 | Preferred for body text |
| Black text on #393369 | 1.85:1 | Fails | Lc 7.9 | Not readable |
| #393369 text on white | 11.34:1 | AAA | Lc 96.0 | Preferred for body text |
| #393369 text on black | 1.85:1 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D6D6F2
oklch(88.5% 0.038 285.6)
-
Step 300
300
#BCBBEB
oklch(80.9% 0.067 285.7)
-
Step 400
400
#9B96E2
oklch(70.7% 0.11 286.2)
-
Step 500
500
#837BD9
oklch(63.2% 0.138 285.6)
-
Step 600
600
#6E62C7
oklch(55.7% 0.152 285.8)
-
Step 700
700
#5C50AC
oklch(49.1% 0.142 285.9)
-
Step 800
800
#4B428B
oklch(42.7% 0.117 285.9)
-
Step 900
900 (this color)
#393369
oklch(35.6% 0.091 285.9)
-
Step 950
950
#242141
oklch(26.9% 0.058 286)
#393369 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) | #1D3C6B | 0.043 |
| Deuteranopia (no green cones) | #1C3968 | 0.042 |
| Tritanopia (no blue cones) | #2A3E49 | 0.076 |
| Achromatopsia (no color) | #3A3A3A | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #393369
#393369
oklch(35.6% 0.091 285.9)
- #423E00
#423E00
oklch(35.6% 0.076 105.5)
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 #393369, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.054
- Marine Blue #01386A ΔE 0.059
- Twilight Blue #0A437A ΔE 0.064
- Dark Slate Blue #483D8B ΔE 0.067
- Marine #042E60 ΔE 0.070
- Dark Grey Blue #29465B ΔE 0.070
- Dark Blue Grey #1F3B4D ΔE 0.071
- Space Cadet #2B2D42 ΔE 0.074
Use #393369 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.