#5D3391
Closest named color: Rebecca Purple (#663399). oklch(42.4% 0.149 300.7), rgb(93, 51, 145).
Aa
White text reads best on this color (8.94:1).
About this color
#5D3391 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.149 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.021 away. White text reads best on it, at 8.94:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.34:1 |
| White text | 8.94:1 |
Values
| HEX | #5D3391 |
| RGB | rgb(93, 51, 145) |
| HSL | hsl(267, 48%, 38%) |
| OKLCH | oklch(42.4% 0.149 300.7) |
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 #5D3391 | 8.94:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #5D3391 | 2.34:1 | Fails | Lc 13.9 | Not readable |
| #5D3391 text on white | 8.94:1 | AAA | Lc 90.0 | Preferred for body text |
| #5D3391 text on black | 2.34:1 | Fails | Lc -12.2 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#ECE6F9
oklch(93.5% 0.026 300.3)
-
Step 200
200
#DED2F5
oklch(88.4% 0.049 301)
-
Step 300
300
#CAB4F1
oklch(80.9% 0.088 301)
-
Step 400
400
#AF8BE9
oklch(70.7% 0.138 300.6)
-
Step 500
500
#9D6AE3
oklch(63.2% 0.179 300.9)
-
Step 600
600
#884ED0
oklch(55.6% 0.193 300.8)
-
Step 700
700
#743EB4
oklch(49.2% 0.179 301)
-
Step 800
800 (this color)
#5D3391
oklch(42.4% 0.149 300.7)
-
Step 900
900
#4D2F74
oklch(37.8% 0.115 301.1)
-
Step 950
950
#2D1C44
oklch(27% 0.073 301.3)
#5D3391 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) | #004994 | 0.111 |
| Deuteranopia (no green cones) | #0D498F | 0.108 |
| Tritanopia (no blue cones) | #52485D | 0.113 |
| Achromatopsia (no color) | #494949 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D3391
#5D3391
oklch(42.4% 0.149 300.7)
- #475600
#475600
oklch(42.5% 0.102 120.6)
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 #5D3391, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.021
- Dark Slate Blue #483D8B ΔE 0.043
- Blueberry #464196 ΔE 0.049
- Chrysanthemum #560BAD ΔE 0.072
- Twilight #4E518B ΔE 0.079
- Imperial Purple #480CA8 ΔE 0.083
- Grape #7209B7 ΔE 0.083
- Blue With A Hint Of Purple #533CC6 ΔE 0.089
Use #5D3391 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.