#5B358B
Closest named color: Rebecca Purple (#663399). oklch(42% 0.138 301), rgb(91, 53, 139).
Aa
White text reads best on this color (9.02:1).
About this color
#5B358B is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.138 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.031 away. White text reads best on it, at 9.02:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #5B358B |
| RGB | rgb(91, 53, 139) |
| HSL | hsl(267, 45%, 38%) |
| OKLCH | oklch(42% 0.138 301) |
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 #5B358B | 9.02:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #5B358B | 2.32:1 | Fails | Lc 13.6 | Not readable |
| #5B358B text on white | 9.02:1 | AAA | Lc 90.3 | Preferred for body text |
| #5B358B text on black | 2.32:1 | Fails | Lc -12.0 | 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
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DED3F3
oklch(88.6% 0.045 301.1)
-
Step 300
300
#C9B5ED
oklch(80.9% 0.081 301)
-
Step 400
400
#AE8CE4
oklch(70.6% 0.13 300.9)
-
Step 500
500
#9B6DDC
oklch(63% 0.165 300.9)
-
Step 600
600
#8752CA
oklch(55.6% 0.18 301.1)
-
Step 700
700
#7242AE
oklch(49.1% 0.166 300.9)
-
Step 800
800 (this color)
#5B358B
oklch(42% 0.138 301)
-
Step 900
900
#4C3171
oklch(37.8% 0.107 300.9)
-
Step 950
950
#2C1D42
oklch(26.9% 0.068 300.6)
#5B358B 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) | #02488E | 0.107 |
| Deuteranopia (no green cones) | #1A4889 | 0.097 |
| Tritanopia (no blue cones) | #51475B | 0.103 |
| Achromatopsia (no color) | #494949 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B358B
#5B358B
oklch(42% 0.138 301)
- #455500
#455500
oklch(42.1% 0.101 121.4)
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 #5B358B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Dark Slate Blue #483D8B ΔE 0.037
- Blueberry #464196 ΔE 0.047
- Twilight #4E518B ΔE 0.073
- Chrysanthemum #560BAD ΔE 0.081
- Dusk #4E5481 ΔE 0.087
- Imperial Purple #480CA8 ΔE 0.089
- Indigo #4B0082 ΔE 0.091
Use #5B358B 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.