Violet and controlled amounts of white should give you lilac. You can increase the intensity of the color by adding blue or red.
Lilac and pink
You can only do this with paint but add white with purple
The colors of a waterlily are pink white or lilac
You can get lilac two ways. One, you can mix red and blue to get violet and then lighten to the shade of lilac with white. You can also eliminate some of the mixing by purchasing a violet or purple paint and then working with it and the white.
lilac
In the purple range - lilac and lavender.
To create a lilac color, combine equal parts of blue and pink. Adjust the ratio to achieve your desired shade of lilac.
Blue and red make purple. Add white and you have lilac.
Lilac and Daffodil
Lilac is a very light purple slightly tinged with blue. Mix (in paint) a tiny bit of crimson, a tiny bit of cerulean blue and massive amounts of white. It should yield lilac. Adjust the proportions until the colour is correct.
Lavendor white pink dark purple yellow green