#5B3D97
Closest named color: Rebecca Purple (#663399). oklch(44.2% 0.141 295.4), rgb(91, 61, 151).
Aa
White text reads best on this color (8.20:1).
About this color
#5B3D97 is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.141 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.028 away. White text reads best on it, at 8.20:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.55:1 |
| White text | 8.20:1 |
Values
| HEX | #5B3D97 |
| RGB | rgb(91, 61, 151) |
| HSL | hsl(260, 42%, 42%) |
| OKLCH | oklch(44.2% 0.141 295.4) |
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 #5B3D97 | 8.20:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #5B3D97 | 2.55:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #5B3D97 text on white | 8.20:1 | AAA | Lc 88.0 | Fine for body text |
| #5B3D97 text on black | 2.55:1 | Fails | Lc -14.1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DBD4F5
oklch(88.6% 0.046 295.2)
-
Step 300
300
#C4B6F1
oklch(80.8% 0.083 295.4)
-
Step 400
400
#A78EEA
oklch(70.6% 0.133 295.3)
-
Step 500
500
#9370E3
oklch(63.2% 0.168 295.2)
-
Step 600
600
#7F54D1
oklch(55.6% 0.185 295.6)
-
Step 700
700
#6B44B5
oklch(49.1% 0.171 295.3)
-
Step 800
800 (this color)
#5B3D97
oklch(44.2% 0.141 295.4)
-
Step 900
900
#473275
oklch(37.7% 0.111 295)
-
Step 950
950
#2A1E44
oklch(27% 0.069 296)
#5B3D97 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) | #05509A | 0.098 |
| Deuteranopia (no green cones) | #164E95 | 0.091 |
| Tritanopia (no blue cones) | #4C5064 | 0.111 |
| Achromatopsia (no color) | #4F4F4F | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3D97
#5B3D97
oklch(44.2% 0.141 295.4)
- #515900
#515900
oklch(44.2% 0.101 115.6)
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 #5B3D97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.028
- Blueberry #464196 ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.039
- Twilight #4E518B ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.077
- Dusk #4E5481 ΔE 0.077
- Bluey Purple #6241C7 ΔE 0.078
- Chrysanthemum #560BAD ΔE 0.083
Use #5B3D97 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.