#5A3585
Closest named color: Dark Slate Blue (#483D8B). oklch(41.5% 0.13 302.4), rgb(90, 53, 133).
Aa
White text reads best on this color (9.19:1).
About this color
#5A3585 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.130 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.037 away. White text reads best on it, at 9.19:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.28:1 |
| White text | 9.19:1 |
Values
| HEX | #5A3585 |
| RGB | rgb(90, 53, 133) |
| HSL | hsl(268, 43%, 36%) |
| OKLCH | oklch(41.5% 0.13 302.4) |
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 #5A3585 | 9.19:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #5A3585 | 2.28:1 | Fails | Lc 13.1 | Not readable |
| #5A3585 text on white | 9.19:1 | AAA | Lc 90.8 | Preferred for body text |
| #5A3585 text on black | 2.28:1 | Fails | Lc -11.5 | 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 800.
-
Step 50
50
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DED3F1
oklch(88.5% 0.042 302.2)
-
Step 300
300
#CAB5EA
oklch(80.9% 0.077 302.8)
-
Step 400
400
#AF8DDF
oklch(70.6% 0.122 302.5)
-
Step 500
500
#9C6FD6
oklch(63.1% 0.155 302.4)
-
Step 600
600
#8754C4
oklch(55.5% 0.17 302.2)
-
Step 700
700
#7344A9
oklch(49.1% 0.157 302.4)
-
Step 800
800 (this color)
#5A3585
oklch(41.5% 0.13 302.4)
-
Step 900
900
#4C326E
oklch(37.8% 0.102 301.7)
-
Step 950
950
#2D1E40
oklch(27.1% 0.063 302.8)
#5A3585 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) | #104788 | 0.101 |
| Deuteranopia (no green cones) | #204783 | 0.092 |
| Tritanopia (no blue cones) | #524557 | 0.098 |
| Achromatopsia (no color) | #484848 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A3585
#5A3585
oklch(41.5% 0.13 302.4)
- #425400
#425400
oklch(41.5% 0.102 122.7)
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 #5A3585, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.037
- Rebecca Purple #663399 ΔE 0.040
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.073
- Dusk #4E5481 ΔE 0.085
- Chrysanthemum #560BAD ΔE 0.089
- Indigo #4B0082 ΔE 0.090
- Cobalt #1E488F ΔE 0.092
Use #5A3585 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.