#5B3086
Closest named color: Rebecca Purple (#663399). oklch(40.9% 0.14 303.9), rgb(91, 48, 134).
Aa
White text reads best on this color (9.49:1).
About this color
#5B3086 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.140 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.038 away. White text reads best on it, at 9.49:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.140) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.21:1 |
| White text | 9.49:1 |
Values
| HEX | #5B3086 |
| RGB | rgb(91, 48, 134) |
| HSL | hsl(270, 47%, 36%) |
| OKLCH | oklch(40.9% 0.14 303.9) |
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 #5B3086 | 9.49:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #5B3086 | 2.21:1 | Fails | Lc 12.4 | Not readable |
| #5B3086 text on white | 9.49:1 | AAA | Lc 91.5 | Preferred for body text |
| #5B3086 text on black | 2.21:1 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F7
oklch(93.5% 0.024 304.5)
-
Step 200
200
#DFD2F2
oklch(88.4% 0.046 303.9)
-
Step 300
300
#CCB4EC
oklch(80.9% 0.082 304.2)
-
Step 400
400
#B28BE3
oklch(70.7% 0.131 303.6)
-
Step 500
500
#A06BDA
oklch(63.1% 0.167 304.1)
-
Step 600
600
#8B50C8
oklch(55.6% 0.182 303.7)
-
Step 700
700
#7640AD
oklch(49.2% 0.169 303.6)
-
Step 800
800 (this color)
#5B3086
oklch(40.9% 0.14 303.9)
-
Step 900
900
#4E2F70
oklch(37.6% 0.11 303.6)
-
Step 950
950
#2E1C41
oklch(26.9% 0.069 304.6)
#5B3086 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) | #004589 | 0.113 |
| Deuteranopia (no green cones) | #194684 | 0.103 |
| Tritanopia (no blue cones) | #534256 | 0.103 |
| Achromatopsia (no color) | #464646 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3086
#5B3086
oklch(40.9% 0.14 303.9)
- #3F5200
#3F5200
oklch(40.8% 0.101 123.6)
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 #5B3086, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.038
- Dark Slate Blue #483D8B ΔE 0.044
- Blueberry #464196 ΔE 0.056
- Indigo #4B0082 ΔE 0.080
- Chrysanthemum #560BAD ΔE 0.081
- Twilight #4E518B ΔE 0.084
- Imperial Purple #480CA8 ΔE 0.088
- Purple #800080 ΔE 0.089
Use #5B3086 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.