#5B3483
Closest named color: Dark Slate Blue (#483D8B). oklch(41.3% 0.13 304), rgb(91, 52, 131).
Aa
White text reads best on this color (9.27:1).
About this color
#5B3483 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.130 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.040 away. White text reads best on it, at 9.27:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.130) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #5B3483 |
| RGB | rgb(91, 52, 131) |
| HSL | hsl(270, 43%, 36%) |
| OKLCH | oklch(41.3% 0.13 304) |
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 #5B3483 | 9.27:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #5B3483 | 2.26:1 | Fails | Lc 12.9 | Not readable |
| #5B3483 text on white | 9.27:1 | AAA | Lc 91.0 | Preferred for body text |
| #5B3483 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
#F7F4FB
oklch(97.1% 0.01 305.4)
-
Step 100
100
#EDE7F6
oklch(93.7% 0.021 304)
-
Step 200
200
#DFD3F0
oklch(88.5% 0.041 304.3)
-
Step 300
300
#CBB5E9
oklch(80.9% 0.076 304)
-
Step 400
400
#B18DDE
oklch(70.7% 0.121 303.9)
-
Step 500
500
#9E6ED4
oklch(63% 0.154 304)
-
Step 600
600
#8A54C2
oklch(55.7% 0.168 304.1)
-
Step 700
700
#7543A7
oklch(49.1% 0.157 304.3)
-
Step 800
800 (this color)
#5B3483
oklch(41.3% 0.13 304)
-
Step 900
900
#4E316C
oklch(37.7% 0.101 304.7)
-
Step 950
950
#2D1D3F
oklch(26.8% 0.064 304.2)
#5B3483 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) | #114686 | 0.103 |
| Deuteranopia (no green cones) | #224781 | 0.093 |
| Tritanopia (no blue cones) | #544456 | 0.096 |
| Achromatopsia (no color) | #474747 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3483
#5B3483
oklch(41.3% 0.13 304)
- #405400
#405400
oklch(41.4% 0.103 124)
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 #5B3483, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.040
- Rebecca Purple #663399 ΔE 0.041
- Blueberry #464196 ΔE 0.054
- Twilight #4E518B ΔE 0.075
- Dusk #4E5481 ΔE 0.086
- Indigo #4B0082 ΔE 0.089
- Chrysanthemum #560BAD ΔE 0.091
- Purple #800080 ΔE 0.093
Use #5B3483 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.