#5B3B94
Closest named color: Rebecca Purple (#663399). oklch(43.6% 0.141 296.7), rgb(91, 59, 148).
Aa
White text reads best on this color (8.40:1).
About this color
#5B3B94 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.141 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.027 away. White text reads best on it, at 8.40:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.49:1 |
| White text | 8.40:1 |
Values
| HEX | #5B3B94 |
| RGB | rgb(91, 59, 148) |
| HSL | hsl(262, 43%, 41%) |
| OKLCH | oklch(43.6% 0.141 296.7) |
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 #5B3B94 | 8.40:1 | AAA | Lc -93.2 | Preferred for body text |
| Black text on #5B3B94 | 2.49:1 | Fails | Lc 15.4 | Dividers and decoration only |
| #5B3B94 text on white | 8.40:1 | AAA | Lc 88.6 | Fine for body text |
| #5B3B94 text on black | 2.49:1 | Fails | Lc -13.6 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD3F4
oklch(88.4% 0.046 297.9)
-
Step 300
300
#C5B6F0
oklch(80.9% 0.082 296.4)
-
Step 400
400
#A98EE8
oklch(70.7% 0.131 296.7)
-
Step 500
500
#956FE1
oklch(63.1% 0.167 296.7)
-
Step 600
600
#8154CF
oklch(55.6% 0.182 296.9)
-
Step 700
700
#6D43B3
oklch(49% 0.17 296.9)
-
Step 800
800 (this color)
#5B3B94
oklch(43.6% 0.141 296.7)
-
Step 900
900
#483274
oklch(37.7% 0.109 296.1)
-
Step 950
950
#2A1E44
oklch(27% 0.069 296)
#5B3B94 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) | #044E97 | 0.100 |
| Deuteranopia (no green cones) | #174C92 | 0.093 |
| Tritanopia (no blue cones) | #4D4E61 | 0.111 |
| Achromatopsia (no color) | #4D4D4D | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3B94
#5B3B94
oklch(43.6% 0.141 296.7)
- #4E5800
#4E5800
oklch(43.6% 0.101 117.1)
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 #5B3B94, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.027
- Dark Slate Blue #483D8B ΔE 0.036
- Blueberry #464196 ΔE 0.037
- Twilight #4E518B ΔE 0.062
- Dusk #4E5481 ΔE 0.079
- Blue With A Hint Of Purple #533CC6 ΔE 0.082
- Chrysanthemum #560BAD ΔE 0.082
- Bluey Purple #6241C7 ΔE 0.083
Use #5B3B94 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.