#511763
Closest named color: Royal Purple (#4B006E). oklch(33.7% 0.133 316.9), rgb(81, 23, 99).
Aa
White text reads best on this color (12.70:1).
About this color
#511763 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.133 and its hue 317°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.038 away. White text reads best on it, at 12.70:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.133) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.65:1 |
| White text | 12.70:1 |
Values
| HEX | #511763 |
| RGB | rgb(81, 23, 99) |
| HSL | hsl(286, 62%, 24%) |
| OKLCH | oklch(33.7% 0.133 316.9) |
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 #511763 | 12.70:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #511763 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #511763 text on white | 12.70:1 | AAA | Lc 97.9 | Preferred for body text |
| #511763 text on black | 1.65:1 | 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
#F2E4F7
oklch(93.6% 0.029 317.2)
-
Step 200
200
#E8CEF2
oklch(88.4% 0.056 316.6)
-
Step 300
300
#DBADEC
oklch(81% 0.1 316.8)
-
Step 400
400
#C87EE2
oklch(70.7% 0.16 316.9)
-
Step 500
500
#B958D9
oklch(63.1% 0.203 316.9)
-
Step 600
600
#A436C6
oklch(55.5% 0.221 316.9)
-
Step 700
700
#8D26AB
oklch(49.1% 0.206 317.2)
-
Step 800
800
#72238B
oklch(42.7% 0.17 316.7)
-
Step 900
900 (this color)
#511763
oklch(33.7% 0.133 316.9)
-
Step 950
950
#361641
oklch(26.9% 0.084 316.6)
#511763 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) | #002F65 | 0.126 |
| Deuteranopia (no green cones) | #183461 | 0.113 |
| Tritanopia (no blue cones) | #50273B | 0.086 |
| Achromatopsia (no color) | #333333 | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511763
#511763
oklch(33.7% 0.133 316.9)
- #1A4200
#1A4200
oklch(33.7% 0.101 136.7)
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 #511763, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.038
- Plum Purple #4E0550 ΔE 0.041
- Grape Purple #5D1451 ΔE 0.043
- Deep Violet #490648 ΔE 0.056
- Indigo #4B0082 ΔE 0.062
- Eggplant Purple #430541 ΔE 0.073
- Rich Purple #720058 ΔE 0.076
- Velvet #750851 ΔE 0.087
Use #511763 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.