#581D6D
Closest named color: Royal Purple (#4B006E). oklch(36.1% 0.138 315.7), rgb(88, 29, 109).
Aa
White text reads best on this color (11.59:1).
About this color
#581D6D is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.138 and its hue 316°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.051 away. White text reads best on it, at 11.59:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.138) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.81:1 |
| White text | 11.59:1 |
Values
| HEX | #581D6D |
| RGB | rgb(88, 29, 109) |
| HSL | hsl(284, 58%, 27%) |
| OKLCH | oklch(36.1% 0.138 315.7) |
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 #581D6D | 11.59:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #581D6D | 1.81:1 | Fails | Lc 8.0 | Not readable |
| #581D6D text on white | 11.59:1 | AAA | Lc 95.9 | Preferred for body text |
| #581D6D text on black | 1.81:1 | 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
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F2E4F8
oklch(93.6% 0.031 315.9)
-
Step 200
200
#E8CEF3
oklch(88.4% 0.057 315.9)
-
Step 300
300
#DBACEE
oklch(80.9% 0.104 316)
-
Step 400
400
#C87DE6
oklch(70.8% 0.166 315.7)
-
Step 500
500
#B955DE
oklch(63.1% 0.213 315.8)
-
Step 600
600
#A432CB
oklch(55.5% 0.23 315.7)
-
Step 700
700
#8D22B0
oklch(49.1% 0.214 315.8)
-
Step 800
800
#72208E
oklch(42.6% 0.177 315.7)
-
Step 900
900 (this color)
#581D6D
oklch(36.1% 0.138 315.7)
-
Step 950
950
#361543
oklch(26.9% 0.088 315.2)
#581D6D 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) | #00356F | 0.130 |
| Deuteranopia (no green cones) | #1C3A6B | 0.116 |
| Tritanopia (no blue cones) | #572D43 | 0.088 |
| Achromatopsia (no color) | #393939 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581D6D
#581D6D
oklch(36.1% 0.138 315.7)
- #204900
#204900
oklch(36.1% 0.107 135.9)
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 #581D6D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.051
- Grape Purple #5D1451 ΔE 0.051
- Indigo #4B0082 ΔE 0.061
- Plum Purple #4E0550 ΔE 0.065
- Rich Purple #720058 ΔE 0.070
- Deep Violet #490648 ΔE 0.080
- Velvet #750851 ΔE 0.081
- Dark Slate Blue #483D8B ΔE 0.087
Use #581D6D 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.