#5B3569
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.095 316.4), rgb(91, 53, 105).
Aa
White text reads best on this color (9.73:1).
About this color
#5B3569 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.095 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.066 away. White text reads best on it, at 9.73:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.095) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.73:1 |
Values
| HEX | #5B3569 |
| RGB | rgb(91, 53, 105) |
| HSL | hsl(284, 33%, 31%) |
| OKLCH | oklch(39.8% 0.095 316.4) |
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 #5B3569 | 9.73:1 | AAA | Lc -96.6 | Preferred for body text |
| Black text on #5B3569 | 2.15:1 | Fails | Lc 11.6 | Not readable |
| #5B3569 text on white | 9.73:1 | AAA | Lc 92.3 | Preferred for body text |
| #5B3569 text on black | 2.15:1 | Fails | Lc -10.1 | 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
#EFE6F3
oklch(93.6% 0.02 315.7)
-
Step 200
200
#E4D2EB
oklch(88.6% 0.039 316.6)
-
Step 300
300
#D3B3E0
oklch(80.9% 0.071 316.1)
-
Step 400
400
#BD8AD0
oklch(70.8% 0.114 316.6)
-
Step 500
500
#AC6BC4
oklch(63.2% 0.146 316.4)
-
Step 600
600
#9750B0
oklch(55.6% 0.159 316.6)
-
Step 700
700
#814097
oklch(49.1% 0.148 316.8)
-
Step 800
800
#69367B
oklch(42.8% 0.122 316.5)
-
Step 900
900 (this color)
#5B3569
oklch(39.8% 0.095 316.4)
-
Step 950
950
#321C3A
oklch(27% 0.061 316.6)
#5B3569 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) | #2B426B | 0.083 |
| Deuteranopia (no green cones) | #364568 | 0.074 |
| Tritanopia (no blue cones) | #5A3C4A | 0.062 |
| Achromatopsia (no color) | #444444 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3569
#5B3569
oklch(39.8% 0.095 316.4)
- #2D5219
#2D5219
oklch(39.7% 0.095 136.3)
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 #5B3569, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.066
- Grape Purple #5D1451 ΔE 0.074
- Purple Brown #673A3F ΔE 0.081
- Rebecca Purple #663399 ΔE 0.083
- Blueberry #464196 ΔE 0.084
- Twilight #4E518B ΔE 0.086
- Dusk #4E5481 ΔE 0.087
- Brownish Purple #76424E ΔE 0.087
Use #5B3569 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.