#5B3565
Closest named color: Dark Slate Blue (#483D8B). oklch(39.6% 0.09 319), rgb(91, 53, 101).
Aa
White text reads best on this color (9.80:1).
About this color
#5B3565 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.090 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.072 away. White text reads best on it, at 9.80:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #5B3565 |
| RGB | rgb(91, 53, 101) |
| HSL | hsl(288, 31%, 30%) |
| OKLCH | oklch(39.6% 0.09 319) |
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 #5B3565 | 9.80:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #5B3565 | 2.14:1 | Fails | Lc 11.4 | Not readable |
| #5B3565 text on white | 9.80:1 | AAA | Lc 92.5 | Preferred for body text |
| #5B3565 text on black | 2.14:1 | Fails | Lc -9.9 | 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
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#F0E6F2
oklch(93.6% 0.019 320.6)
-
Step 200
200
#E4D2E9
oklch(88.5% 0.037 318.9)
-
Step 300
300
#D4B3DD
oklch(80.9% 0.068 318.9)
-
Step 400
400
#BE8ACC
oklch(70.7% 0.11 319)
-
Step 500
500
#AD6CBE
oklch(63.2% 0.138 319.1)
-
Step 600
600
#9852AA
oklch(55.7% 0.15 319.1)
-
Step 700
700
#824292
oklch(49.2% 0.14 319.3)
-
Step 800
800
#693777
oklch(42.7% 0.116 318.5)
-
Step 900
900 (this color)
#5B3565
oklch(39.6% 0.09 319)
-
Step 950
950
#321D38
oklch(27.1% 0.056 318.5)
#5B3565 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) | #2D4167 | 0.080 |
| Deuteranopia (no green cones) | #384564 | 0.072 |
| Tritanopia (no blue cones) | #5B3B48 | 0.057 |
| Achromatopsia (no color) | #444444 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3565
#5B3565
oklch(39.6% 0.09 319)
- #2B521F
#2B521F
oklch(39.7% 0.091 138.9)
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 #5B3565, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.072
- Grape Purple #5D1451 ΔE 0.072
- Purple Brown #673A3F ΔE 0.075
- Brownish Purple #76424E ΔE 0.083
- Velvet #750851 ΔE 0.086
- Rich Purple #720058 ΔE 0.088
- Dusk #4E5481 ΔE 0.089
- Twilight #4E518B ΔE 0.089
Use #5B3565 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.