#5A3388
Closest named color: Rebecca Purple (#663399). oklch(41.4% 0.137 301.8), rgb(90, 51, 136).
Aa
White text reads best on this color (9.27:1).
About this color
#5A3388 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.137 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.035 away. White text reads best on it, at 9.27:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #5A3388 |
| RGB | rgb(90, 51, 136) |
| HSL | hsl(268, 45%, 37%) |
| OKLCH | oklch(41.4% 0.137 301.8) |
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 #5A3388 | 9.27:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #5A3388 | 2.26:1 | Fails | Lc 13.0 | Not readable |
| #5A3388 text on white | 9.27:1 | AAA | Lc 91.0 | Preferred for body text |
| #5A3388 text on black | 2.26:1 | Fails | Lc -11.3 | 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
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F2
oklch(88.5% 0.044 301.7)
-
Step 300
300
#CAB5EC
oklch(80.9% 0.079 302.1)
-
Step 400
400
#AF8CE3
oklch(70.6% 0.129 301.7)
-
Step 500
500
#9C6DDB
oklch(63.1% 0.164 301.6)
-
Step 600
600
#8852C8
oklch(55.6% 0.178 302)
-
Step 700
700
#7342AD
oklch(49.1% 0.165 301.7)
-
Step 800
800 (this color)
#5A3388
oklch(41.4% 0.137 301.8)
-
Step 900
900
#4D3170
oklch(37.8% 0.106 302.1)
-
Step 950
950
#2D1D42
oklch(27.1% 0.068 302)
#5A3388 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) | #00478B | 0.108 |
| Deuteranopia (no green cones) | #194786 | 0.098 |
| Tritanopia (no blue cones) | #514558 | 0.103 |
| Achromatopsia (no color) | #474747 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5A3388
#5A3388
oklch(41.4% 0.137 301.8)
- #435300
#435300
oklch(41.4% 0.1 121.6)
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 #5A3388, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.038
- Blueberry #464196 ΔE 0.050
- Twilight #4E518B ΔE 0.077
- Chrysanthemum #560BAD ΔE 0.082
- Indigo #4B0082 ΔE 0.086
- Imperial Purple #480CA8 ΔE 0.088
- Dusk #4E5481 ΔE 0.090
Use #5A3388 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.