#5D2781
Closest named color: Rebecca Purple (#663399). oklch(39.5% 0.147 308.6), rgb(93, 39, 129).
Aa
White text reads best on this color (10.13:1).
About this color
#5D2781 is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.147 and its hue 309°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.049 away. White text reads best on it, at 10.13:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.147) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.07:1 |
| White text | 10.13:1 |
Values
| HEX | #5D2781 |
| RGB | rgb(93, 39, 129) |
| HSL | hsl(276, 54%, 33%) |
| OKLCH | oklch(39.5% 0.147 308.6) |
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 #5D2781 | 10.13:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #5D2781 | 2.07:1 | Fails | Lc 11.1 | Not readable |
| #5D2781 text on white | 10.13:1 | AAA | Lc 92.9 | Preferred for body text |
| #5D2781 text on black | 2.07:1 | Fails | Lc -9.6 | 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 900.
-
Step 50
50
#F8F3FD
oklch(97.1% 0.014 308.3)
-
Step 100
100
#F0E5FB
oklch(93.7% 0.032 308.1)
-
Step 200
200
#E5CFF9
oklch(88.6% 0.061 308.7)
-
Step 300
300
#D5ADF7
oklch(80.9% 0.11 308.7)
-
Step 400
400
#C07DF3
oklch(70.6% 0.177 308.7)
-
Step 500
500
#B155EF
oklch(63.2% 0.227 308.8)
-
Step 600
600
#9C30DD
oklch(55.6% 0.245 308.5)
-
Step 700
700
#861EC0
oklch(49.1% 0.229 308.7)
-
Step 800
800
#6D1E9B
oklch(42.8% 0.189 308.9)
-
Step 900
900 (this color)
#5D2781
oklch(39.5% 0.147 308.6)
-
Step 950
950
#331548
oklch(26.9% 0.093 308.4)
#5D2781 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) | #003F84 | 0.125 |
| Deuteranopia (no green cones) | #15427F | 0.118 |
| Tritanopia (no blue cones) | #583A51 | 0.101 |
| Achromatopsia (no color) | #414141 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D2781
#5D2781
oklch(39.5% 0.147 308.6)
- #355000
#355000
oklch(39.4% 0.104 128.5)
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 #5D2781, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.061
- Indigo #4B0082 ΔE 0.067
- Blueberry #464196 ΔE 0.075
- Royal Purple #4B006E ΔE 0.077
- Purple #800080 ΔE 0.078
- Chrysanthemum #560BAD ΔE 0.082
- Grape Purple #5D1451 ΔE 0.086
Use #5D2781 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.