#5C3387
Closest named color: Rebecca Purple (#663399). oklch(41.5% 0.136 303.5), rgb(92, 51, 135).
Aa
White text reads best on this color (9.21:1).
About this color
#5C3387 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.136 and its hue 303°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.035 away. White text reads best on it, at 9.21:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.136) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.27:1 |
| White text | 9.21:1 |
Values
| HEX | #5C3387 |
| RGB | rgb(92, 51, 135) |
| HSL | hsl(269, 45%, 36%) |
| OKLCH | oklch(41.5% 0.136 303.5) |
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 #5C3387 | 9.21:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #5C3387 | 2.27:1 | Fails | Lc 13.1 | Not readable |
| #5C3387 text on white | 9.21:1 | AAA | Lc 90.8 | Preferred for body text |
| #5C3387 text on black | 2.27:1 | Fails | Lc -11.5 | 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
#EDE6F7
oklch(93.5% 0.024 304.5)
-
Step 200
200
#DFD3F2
oklch(88.6% 0.044 303.1)
-
Step 300
300
#CBB4EB
oklch(80.8% 0.08 303.7)
-
Step 400
400
#B18CE1
oklch(70.7% 0.127 303.4)
-
Step 500
500
#9F6CD9
oklch(63.1% 0.164 303.7)
-
Step 600
600
#8A51C6
oklch(55.5% 0.178 303.6)
-
Step 700
700
#7541AB
oklch(49% 0.165 303.5)
-
Step 800
800 (this color)
#5C3387
oklch(41.5% 0.136 303.5)
-
Step 900
900
#4E306F
oklch(37.7% 0.107 303.7)
-
Step 950
950
#2D1D41
oklch(27% 0.067 302.7)
#5C3387 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) | #05478A | 0.110 |
| Deuteranopia (no green cones) | #1D4785 | 0.099 |
| Tritanopia (no blue cones) | #544458 | 0.100 |
| Achromatopsia (no color) | #484848 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C3387
#5C3387
oklch(41.5% 0.136 303.5)
- #415400
#415400
oklch(41.5% 0.102 123.3)
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 #5C3387, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.035
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.053
- Twilight #4E518B ΔE 0.077
- Chrysanthemum #560BAD ΔE 0.084
- Indigo #4B0082 ΔE 0.088
- Dusk #4E5481 ΔE 0.090
- Purple #800080 ΔE 0.090
Use #5C3387 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.