#5B3196
Closest named color: Rebecca Purple (#663399). oklch(42.2% 0.158 298.5), rgb(91, 49, 150).
Aa
White text reads best on this color (9.03:1).
About this color
#5B3196 is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.158 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.023 away. White text reads best on it, at 9.03:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #5B3196 |
| RGB | rgb(91, 49, 150) |
| HSL | hsl(265, 51%, 39%) |
| OKLCH | oklch(42.2% 0.158 298.5) |
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 #5B3196 | 9.03:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #5B3196 | 2.32:1 | Fails | Lc 13.8 | Not readable |
| #5B3196 text on white | 9.03:1 | AAA | Lc 90.2 | Preferred for body text |
| #5B3196 text on black | 2.32:1 | Fails | Lc -12.1 | 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
#C8B4F5
oklch(80.9% 0.093 298.4)
-
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
#723CBB
oklch(49.2% 0.189 298.7)
-
Step 800
800 (this color)
#5B3196
oklch(42.2% 0.158 298.5)
-
Step 900
900
#4B2E79
oklch(37.7% 0.123 298.1)
-
Step 950
950
#2C1C47
oklch(27.1% 0.078 298.2)
#5B3196 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) | #004999 | 0.109 |
| Deuteranopia (no green cones) | #004894 | 0.110 |
| Tritanopia (no blue cones) | #4D485F | 0.119 |
| Achromatopsia (no color) | #494949 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3196
#5B3196
oklch(42.2% 0.158 298.5)
- #495400
#495400
oklch(42.1% 0.098 118.1)
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 #5B3196, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.023
- Dark Slate Blue #483D8B ΔE 0.045
- Blueberry #464196 ΔE 0.048
- Chrysanthemum #560BAD ΔE 0.062
- Imperial Purple #480CA8 ΔE 0.073
- Grape #7209B7 ΔE 0.077
- Blue With A Hint Of Purple #533CC6 ΔE 0.082
- Twilight #4E518B ΔE 0.084
Use #5B3196 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.