#383478
Closest named color: Dark Slate Blue (#483D8B). oklch(36.9% 0.112 282), rgb(56, 52, 120).
Aa
White text reads best on this color (10.87:1).
About this color
#383478 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.112 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.048 away. White text reads best on it, at 10.87:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.93:1 |
| White text | 10.87:1 |
Values
| HEX | #383478 |
| RGB | rgb(56, 52, 120) |
| HSL | hsl(244, 40%, 34%) |
| OKLCH | oklch(36.9% 0.112 282) |
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 #383478 | 10.87:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #383478 | 1.93:1 | Fails | Lc 9.0 | Not readable |
| #383478 text on white | 10.87:1 | AAA | Lc 94.9 | Preferred for body text |
| #383478 text on black | 1.93:1 | Fails | Lc -7.7 | 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
#E7E8FA
oklch(93.6% 0.024 283.4)
-
Step 200
200
#D3D6F8
oklch(88.5% 0.047 281.4)
-
Step 300
300
#B7BAF6
oklch(80.8% 0.085 282.1)
-
Step 400
400
#9495F2
oklch(70.8% 0.134 281.9)
-
Step 500
500
#7C77ED
oklch(63.1% 0.172 282.2)
-
Step 600
600
#675DDC
oklch(55.7% 0.187 282)
-
Step 700
700
#564BBF
oklch(49.1% 0.175 282.1)
-
Step 800
800
#463F9A
oklch(42.8% 0.143 281.9)
-
Step 900
900 (this color)
#383478
oklch(36.9% 0.112 282)
-
Step 950
950
#222048
oklch(26.9% 0.072 282.7)
#383478 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) | #0C3F7A | 0.052 |
| Deuteranopia (no green cones) | #043B77 | 0.053 |
| Tritanopia (no blue cones) | #1F4350 | 0.096 |
| Achromatopsia (no color) | #3D3D3D | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383478
#383478
oklch(36.9% 0.112 282)
- #484000
#484000
oklch(36.8% 0.077 101.4)
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 #383478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.048
- Twilight Blue #0A437A ΔE 0.057
- Marine Blue #01386A ΔE 0.063
- Blueberry #464196 ΔE 0.064
- Cobalt #1E488F ΔE 0.066
- Prussian Blue #1D3557 ΔE 0.071
- Marine #042E60 ΔE 0.079
- Light Navy #155084 ΔE 0.081
Use #383478 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.