#511C5A
Closest named color: Grape Purple (#5D1451). oklch(33.6% 0.117 321.6), rgb(81, 28, 90).
Aa
White text reads best on this color (12.62:1).
About this color
#511C5A is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.117 and its hue 322°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.032 away. White text reads best on it, at 12.62:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.66:1 |
| White text | 12.62:1 |
Values
| HEX | #511C5A |
| RGB | rgb(81, 28, 90) |
| HSL | hsl(291, 53%, 23%) |
| OKLCH | oklch(33.6% 0.117 321.6) |
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 #511C5A | 12.62:1 | AAA | Lc -101.5 | Preferred for body text |
| Black text on #511C5A | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #511C5A text on white | 12.62:1 | AAA | Lc 98.0 | Preferred for body text |
| #511C5A text on black | 1.66:1 | 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
#F9F3FA
oklch(97.1% 0.011 321.3)
-
Step 100
100
#F2E5F4
oklch(93.7% 0.024 321.7)
-
Step 200
200
#E9CFED
oklch(88.5% 0.049 321.7)
-
Step 300
300
#DBAEE3
oklch(80.8% 0.088 321.3)
-
Step 400
400
#C881D5
oklch(70.6% 0.141 321.2)
-
Step 500
500
#B95EC9
oklch(63.1% 0.179 321.5)
-
Step 600
600
#A540B6
oklch(55.7% 0.195 321.6)
-
Step 700
700
#8D319C
oklch(49.1% 0.18 321.8)
-
Step 800
800
#722A7F
oklch(42.7% 0.15 321.2)
-
Step 900
900 (this color)
#511C5A
oklch(33.6% 0.117 321.6)
-
Step 950
950
#36183C
oklch(26.9% 0.074 320.7)
#511C5A 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) | #0C2F5C | 0.117 |
| Deuteranopia (no green cones) | #233558 | 0.100 |
| Tritanopia (no blue cones) | #522638 | 0.071 |
| Achromatopsia (no color) | #333333 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511C5A
#511C5A
oklch(33.6% 0.117 321.6)
- #064400
#064400
oklch(33.6% 0.112 141.6)
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 #511C5A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.032
- Plum Purple #4E0550 ΔE 0.039
- Deep Violet #490648 ΔE 0.050
- Royal Purple #4B006E ΔE 0.056
- Eggplant Purple #430541 ΔE 0.066
- Rich Purple #720058 ΔE 0.073
- Velvet #750851 ΔE 0.080
- Indigo #4B0082 ΔE 0.080
Use #511C5A 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.