#5B3568
Closest named color: Dark Slate Blue (#483D8B). oklch(39.7% 0.094 317), rgb(91, 53, 104).
Aa
White text reads best on this color (9.74:1).
About this color
#5B3568 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.094 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.068 away. White text reads best on it, at 9.74:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.74:1 |
Values
| HEX | #5B3568 |
| RGB | rgb(91, 53, 104) |
| HSL | hsl(285, 32%, 31%) |
| OKLCH | oklch(39.7% 0.094 317) |
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 #5B3568 | 9.74:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #5B3568 | 2.15:1 | Fails | Lc 11.6 | Not readable |
| #5B3568 text on white | 9.74:1 | AAA | Lc 92.4 | Preferred for body text |
| #5B3568 text on black | 2.15:1 | Fails | Lc -10.0 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#F0E6F3
oklch(93.7% 0.02 318.4)
-
Step 200
200
#E4D2EB
oklch(88.6% 0.039 316.6)
-
Step 300
300
#D3B3DF
oklch(80.9% 0.07 316.8)
-
Step 400
400
#BD8ACF
oklch(70.7% 0.113 317)
-
Step 500
500
#AC6BC2
oklch(63.1% 0.143 317.2)
-
Step 600
600
#9751AF
oklch(55.7% 0.156 316.8)
-
Step 700
700
#814196
oklch(49.2% 0.145 317.1)
-
Step 800
800
#69367A
oklch(42.8% 0.121 317.1)
-
Step 900
900 (this color)
#5B3568
oklch(39.7% 0.094 317)
-
Step 950
950
#321C39
oklch(26.9% 0.06 317.7)
#5B3568 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) | #2C426A | 0.082 |
| Deuteranopia (no green cones) | #364567 | 0.074 |
| Tritanopia (no blue cones) | #5B3C49 | 0.062 |
| Achromatopsia (no color) | #444444 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3568
#5B3568
oklch(39.7% 0.094 317)
- #2D521B
#2D521B
oklch(39.7% 0.093 136.8)
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 #5B3568, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.068
- Grape Purple #5D1451 ΔE 0.074
- Purple Brown #673A3F ΔE 0.079
- Rebecca Purple #663399 ΔE 0.084
- Blueberry #464196 ΔE 0.086
- Brownish Purple #76424E ΔE 0.086
- Twilight #4E518B ΔE 0.086
- Dusk #4E5481 ΔE 0.087
Use #5B3568 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.