#383574
Closest named color: Dark Slate Blue (#483D8B). oklch(36.8% 0.105 282.1), rgb(56, 53, 116).
Aa
White text reads best on this color (10.88:1).
About this color
#383574 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.105 and its hue 282°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.88:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.105) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.92:1 |
| White text | 10.88:1 |
Values
| HEX | #383574 |
| RGB | rgb(56, 53, 116) |
| HSL | hsl(243, 37%, 33%) |
| OKLCH | oklch(36.8% 0.105 282.1) |
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 #383574 | 10.88:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #383574 | 1.92:1 | Fails | Lc 8.9 | Not readable |
| #383574 text on white | 10.88:1 | AAA | Lc 95.0 | Preferred for body text |
| #383574 text on black | 1.92:1 | Fails | Lc -7.6 | 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
#E7E8F9
oklch(93.5% 0.023 283.3)
-
Step 200
200
#D4D6F6
oklch(88.5% 0.044 282.6)
-
Step 300
300
#B8BBF3
oklch(80.9% 0.079 282.1)
-
Step 400
400
#9596ED
oklch(70.8% 0.126 282.2)
-
Step 500
500
#7C79E7
oklch(63.1% 0.161 282)
-
Step 600
600
#675FD5
oklch(55.6% 0.175 282.1)
-
Step 700
700
#564EB8
oklch(49.1% 0.162 282)
-
Step 800
800
#464095
oklch(42.6% 0.135 282.2)
-
Step 900
900 (this color)
#383574
oklch(36.8% 0.105 282.1)
-
Step 950
950
#222146
oklch(27% 0.067 282.1)
#383574 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) | #153F76 | 0.046 |
| Deuteranopia (no green cones) | #103B73 | 0.047 |
| Tritanopia (no blue cones) | #22434F | 0.090 |
| Achromatopsia (no color) | #3D3D3D | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #383574
#383574
oklch(36.8% 0.105 282.1)
- #474000
#474000
oklch(36.7% 0.077 102.5)
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 #383574, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Twilight Blue #0A437A ΔE 0.056
- Marine Blue #01386A ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.065
- Cobalt #1E488F ΔE 0.067
- Blueberry #464196 ΔE 0.068
- Dark Grey Blue #29465B ΔE 0.076
- Marine #042E60 ΔE 0.076
Use #383574 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.