#5F3571
Closest named color: Dark Slate Blue (#483D8B). oklch(40.8% 0.107 314.9), rgb(95, 53, 113).
Aa
White text reads best on this color (9.39:1).
About this color
#5F3571 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.107 and its hue 315°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.061 away. White text reads best on it, at 9.39:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #5F3571 |
| RGB | rgb(95, 53, 113) |
| HSL | hsl(282, 36%, 33%) |
| OKLCH | oklch(40.8% 0.107 314.9) |
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 #5F3571 | 9.39:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #5F3571 | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #5F3571 text on white | 9.39:1 | AAA | Lc 91.4 | Preferred for body text |
| #5F3571 text on black | 2.23:1 | Fails | Lc -10.9 | 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 800.
-
Step 50
50
#F8F4F9
oklch(97.2% 0.008 319.4)
-
Step 100
100
#EEE6F2
oklch(93.5% 0.018 314.7)
-
Step 200
200
#E2D3E9
oklch(88.6% 0.034 315.2)
-
Step 300
300
#D0B5DD
oklch(80.9% 0.063 314.8)
-
Step 400
400
#B88DCC
oklch(70.6% 0.101 314.8)
-
Step 500
500
#A670BE
oklch(63.1% 0.127 314.9)
-
Step 600
600
#9157AB
oklch(55.6% 0.139 314.5)
-
Step 700
700
#7C4692
oklch(49.1% 0.13 315.4)
-
Step 800
800 (this color)
#5F3571
oklch(40.8% 0.107 314.9)
-
Step 900
900
#523360
oklch(37.8% 0.083 314.6)
-
Step 950
950
#301E38
oklch(27% 0.053 314.9)
#5F3571 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) | #284473 | 0.093 |
| Deuteranopia (no green cones) | #35476F | 0.082 |
| Tritanopia (no blue cones) | #5E3E4E | 0.070 |
| Achromatopsia (no color) | #464646 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F3571
#5F3571
oklch(40.8% 0.107 314.9)
- #2E5610
#2E5610
oklch(40.8% 0.107 135)
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 #5F3571, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.061
- Rebecca Purple #663399 ΔE 0.068
- Blueberry #464196 ΔE 0.077
- Grape Purple #5D1451 ΔE 0.081
- Twilight #4E518B ΔE 0.081
- Dusk #4E5481 ΔE 0.085
- Rich Purple #720058 ΔE 0.088
- Velvet #750851 ΔE 0.089
Use #5F3571 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.