A secondary colour made by mixing equal parts of blue and red, purple is a very popular colour and its various shades including violet are symbolic of royalty and spirituality.
Purple historically was a colour worn only by the very rich or powerful and so has been used to symbolise royalty and wealth. Purple and its related tints and shades, including lilac are very warm colours.
The complementary colour for purple is yellow-green which when mixed together creates a feel of late summer. Combine purple with its analogous colours ranging from dark blue to pinks and red. It is a colour which blends well for dark forest themes or Autumn colours of red, browns, yellows and rusts.
For a lighter, more summery feel try mixing with aqua green and orange-yellow, the purple adding depth to these bright vibrant colours.