#5B3567
Closest named color: Dark Slate Blue (#483D8B). oklch(39.7% 0.093 317.7), rgb(91, 53, 103).
Aa
White text reads best on this color (9.76:1).
About this color
#5B3567 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.093 and its hue 318°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.069 away. White text reads best on it, at 9.76:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.093) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.76:1 |
Values
| HEX | #5B3567 |
| RGB | rgb(91, 53, 103) |
| HSL | hsl(286, 32%, 31%) |
| OKLCH | oklch(39.7% 0.093 317.7) |
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 #5B3567 | 9.76:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #5B3567 | 2.14:1 | Fails | Lc 11.5 | Not readable |
| #5B3567 text on white | 9.76:1 | AAA | Lc 92.4 | Preferred for body text |
| #5B3567 text on black | 2.14:1 | 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
#E4D2EA
oklch(88.6% 0.038 317.7)
-
Step 300
300
#D4B3DE
oklch(80.9% 0.069 318.3)
-
Step 400
400
#BD8ACE
oklch(70.7% 0.111 317.5)
-
Step 500
500
#AC6BC1
oklch(63% 0.142 317.5)
-
Step 600
600
#9751AD
oklch(55.5% 0.154 317.6)
-
Step 700
700
#814195
oklch(49.1% 0.144 317.5)
-
Step 800
800
#693679
oklch(42.7% 0.12 317.6)
-
Step 900
900 (this color)
#5B3567
oklch(39.7% 0.093 317.7)
-
Step 950
950
#321C39
oklch(26.9% 0.06 317.7)
#5B3567 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) | #2C4169 | 0.081 |
| Deuteranopia (no green cones) | #374566 | 0.073 |
| Tritanopia (no blue cones) | #5B3C49 | 0.060 |
| Achromatopsia (no color) | #444444 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3567
#5B3567
oklch(39.7% 0.093 317.7)
- #2C521C
#2C521C
oklch(39.7% 0.093 137.6)
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 #5B3567, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.069
- Grape Purple #5D1451 ΔE 0.073
- Purple Brown #673A3F ΔE 0.078
- Brownish Purple #76424E ΔE 0.085
- Rebecca Purple #663399 ΔE 0.086
- Blueberry #464196 ΔE 0.087
- Velvet #750851 ΔE 0.087
- Twilight #4E518B ΔE 0.087
Use #5B3567 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.