#5D3398
Closest named color: Rebecca Purple (#663399). oklch(42.9% 0.157 298.6), rgb(93, 51, 152).
Aa
White text reads best on this color (8.77:1).
About this color
#5D3398 is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.157 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.017 away. White text reads best on it, at 8.77:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.157) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.39:1 |
| White text | 8.77:1 |
Values
| HEX | #5D3398 |
| RGB | rgb(93, 51, 152) |
| HSL | hsl(265, 50%, 40%) |
| OKLCH | oklch(42.9% 0.157 298.6) |
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 #5D3398 | 8.77:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #5D3398 | 2.39:1 | Fails | Lc 14.5 | Not readable |
| #5D3398 text on white | 8.77:1 | AAA | Lc 89.5 | Fine for body text |
| #5D3398 text on black | 2.39:1 | Fails | Lc -12.7 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#ECE6FA
oklch(93.6% 0.027 299.5)
-
Step 200
200
#DDD2F7
oklch(88.4% 0.052 298.9)
-
Step 300
300
#C8B4F4
oklch(80.9% 0.091 298.7)
-
Step 400
400
#AD8AEF
oklch(70.7% 0.147 298.5)
-
Step 500
500
#9A69EA
oklch(63.1% 0.188 298.4)
-
Step 600
600
#864CD8
oklch(55.7% 0.204 298.6)
-
Step 700
700
#723BBB
oklch(49.1% 0.191 298.8)
-
Step 800
800 (this color)
#5D3398
oklch(42.9% 0.157 298.6)
-
Step 900
900
#4B2E78
oklch(37.7% 0.122 298.4)
-
Step 950
950
#2C1C47
oklch(27.1% 0.078 298.2)
#5D3398 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) | #004B9B | 0.110 |
| Deuteranopia (no green cones) | #004A96 | 0.111 |
| Tritanopia (no blue cones) | #4F4A61 | 0.120 |
| Achromatopsia (no color) | #4B4B4B | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D3398
#5D3398
oklch(42.9% 0.157 298.6)
- #4A5600
#4A5600
oklch(42.8% 0.1 118.6)
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 #5D3398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.017
- Dark Slate Blue #483D8B ΔE 0.047
- Blueberry #464196 ΔE 0.048
- Chrysanthemum #560BAD ΔE 0.065
- Grape #7209B7 ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.079
- Bluey Purple #6241C7 ΔE 0.081
Use #5D3398 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.