#5D3587
Closest named color: Rebecca Purple (#663399). oklch(42% 0.134 303.7), rgb(93, 53, 135).
Aa
White text reads best on this color (9.03:1).
About this color
#5D3587 is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.134 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.034 away. White text reads best on it, at 9.03:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.134) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.32:1 |
| White text | 9.03:1 |
Values
| HEX | #5D3587 |
| RGB | rgb(93, 53, 135) |
| HSL | hsl(269, 44%, 37%) |
| OKLCH | oklch(42% 0.134 303.7) |
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 #5D3587 | 9.03:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #5D3587 | 2.32:1 | Fails | Lc 13.6 | Not readable |
| #5D3587 text on white | 9.03:1 | AAA | Lc 90.4 | Preferred for body text |
| #5D3587 text on black | 2.32:1 | Fails | Lc -11.9 | 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
#DFD3F1
oklch(88.6% 0.043 303.7)
-
Step 300
300
#CBB5EA
oklch(80.9% 0.077 303.6)
-
Step 400
400
#B18CE0
oklch(70.7% 0.125 303.6)
-
Step 500
500
#9E6DD7
oklch(63% 0.16 303.5)
-
Step 600
600
#8A52C4
oklch(55.6% 0.174 303.9)
-
Step 700
700
#7542AA
oklch(49.1% 0.162 303.6)
-
Step 800
800 (this color)
#5D3587
oklch(42% 0.134 303.7)
-
Step 900
900
#4E316E
oklch(37.8% 0.104 303.8)
-
Step 950
950
#2D1D40
oklch(26.9% 0.065 303.4)
#5D3587 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) | #0E488A | 0.106 |
| Deuteranopia (no green cones) | #224985 | 0.096 |
| Tritanopia (no blue cones) | #554559 | 0.097 |
| Achromatopsia (no color) | #494949 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D3587
#5D3587
oklch(42% 0.134 303.7)
- #425600
#425600
oklch(42.1% 0.104 123.7)
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 #5D3587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.034
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.052
- Twilight #4E518B ΔE 0.073
- Dusk #4E5481 ΔE 0.086
- Chrysanthemum #560BAD ΔE 0.088
- Purple #800080 ΔE 0.091
- Indigo #4B0082 ΔE 0.093
Use #5D3587 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.