#511A4C
Closest named color: Grape Purple (#5D1451). oklch(32.5% 0.106 331.5), rgb(81, 26, 76).
Aa
White text reads best on this color (13.10:1).
About this color
#511A4C is a dark, moderately saturated purple. In OKLCH its lightness is 32%, its chroma 0.106 and its hue 331°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.028 away. White text reads best on it, at 13.10:1.
| Hue family | Purples |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.60:1 |
| White text | 13.10:1 |
Values
| HEX | #511A4C |
| RGB | rgb(81, 26, 76) |
| HSL | hsl(305, 51%, 21%) |
| OKLCH | oklch(32.5% 0.106 331.5) |
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 #511A4C | 13.10:1 | AAA | Lc -102.2 | Preferred for body text |
| Black text on #511A4C | 1.60:1 | Fails | Lc 0.0 | Not readable |
| #511A4C text on white | 13.10:1 | AAA | Lc 98.8 | Preferred for body text |
| #511A4C text on black | 1.60:1 | 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
#FAF3F9
oklch(97.1% 0.011 330.1)
-
Step 100
100
#F4E5F1
oklch(93.7% 0.023 332.4)
-
Step 200
200
#EBCFE7
oklch(88.5% 0.044 330.6)
-
Step 300
300
#E0AED8
oklch(80.9% 0.08 331.8)
-
Step 400
400
#CE82C4
oklch(70.7% 0.126 331.6)
-
Step 500
500
#C05FB5
oklch(63.1% 0.163 331.7)
-
Step 600
600
#AB42A1
oklch(55.6% 0.177 331.6)
-
Step 700
700
#92338A
oklch(49% 0.165 331.3)
-
Step 800
800
#772C70
oklch(42.8% 0.136 331.5)
-
Step 900
900 (this color)
#511A4C
oklch(32.5% 0.106 331.5)
-
Step 950
950
#391835
oklch(27% 0.068 332)
#511A4C 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) | #172C4E | 0.111 |
| Deuteranopia (no green cones) | #29334B | 0.096 |
| Tritanopia (no blue cones) | #541F30 | 0.056 |
| Achromatopsia (no color) | #303030 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511A4C
#511A4C
oklch(32.5% 0.106 331.5)
- #00401C
#00401C
oklch(32.5% 0.086 151.7)
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 #511A4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.028
- Plum Purple #4E0550 ΔE 0.036
- Deep Violet #490648 ΔE 0.040
- Eggplant Purple #430541 ΔE 0.054
- Aubergine #3D0734 ΔE 0.072
- Royal Purple #4B006E ΔE 0.075
- Rich Purple #720058 ΔE 0.075
- Velvet #750851 ΔE 0.078
Use #511A4C 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.