#581B5E
Closest named color: Grape Purple (#5D1451). oklch(34.8% 0.126 324), rgb(88, 27, 94).
Aa
White text reads best on this color (12.11:1).
About this color
#581B5E is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.126 and its hue 324°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.026 away. White text reads best on it, at 12.11:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.126) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.73:1 |
| White text | 12.11:1 |
Values
| HEX | #581B5E |
| RGB | rgb(88, 27, 94) |
| HSL | hsl(295, 55%, 24%) |
| OKLCH | oklch(34.8% 0.126 324) |
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 #581B5E | 12.11:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #581B5E | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #581B5E text on white | 12.11:1 | AAA | Lc 96.9 | Preferred for body text |
| #581B5E text on black | 1.73:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#FAF3FA
oklch(97.2% 0.012 325.7)
-
Step 100
100
#F3E4F4
oklch(93.5% 0.027 323.9)
-
Step 200
200
#EBCEED
oklch(88.5% 0.052 324)
-
Step 300
300
#DFACE3
oklch(80.8% 0.094 324)
-
Step 400
400
#CE7DD5
oklch(70.6% 0.151 324.1)
-
Step 500
500
#C058CA
oklch(63.2% 0.193 324.1)
-
Step 600
600
#AB37B6
oklch(55.6% 0.209 324.2)
-
Step 700
700
#93279D
oklch(49.1% 0.196 324.2)
-
Step 800
800
#77237F
oklch(42.6% 0.162 324.2)
-
Step 900
900 (this color)
#581B5E
oklch(34.8% 0.126 324)
-
Step 950
950
#39163C
oklch(27.1% 0.08 324.4)
#581B5E 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) | #0B3160 | 0.129 |
| Deuteranopia (no green cones) | #26385C | 0.110 |
| Tritanopia (no blue cones) | #5A263A | 0.074 |
| Achromatopsia (no color) | #363636 | 0.127 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581B5E
#581B5E
oklch(34.8% 0.126 324)
- #004809
#004809
oklch(34.9% 0.113 144.1)
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 #581B5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.026
- Plum Purple #4E0550 ΔE 0.047
- Royal Purple #4B006E ΔE 0.058
- Rich Purple #720058 ΔE 0.059
- Deep Violet #490648 ΔE 0.061
- Velvet #750851 ΔE 0.068
- Eggplant Purple #430541 ΔE 0.078
- Indigo #4B0082 ΔE 0.080
Use #581B5E 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.