It exists in culture and art, but not, in the same way that violet does, in optics. It is simply a combination, in various proportions, of two primary colors, red and blue. In color theory, a "purple" is defined as any non-spectral color between violet and red (excluding violet and red themselves).
Similarly, you may ask, is blue or purple darker?
In the traditional color wheel used by painters, violet and purple are both placed between red and blue. Purple occupies the space closer to red, between crimson and violet. Violet is closer to blue, and usually less intense and bright than purple.
What food coloring to make purple?
Place 10 drops red food coloring into a small bowl. Whisk the red and blue together to create purple. Drop in additional red food coloring, 1 drop at a time, to lighten the shade, or more blue to darken it. Use the purple food coloring as directed on recipes.
Is Violet a real color?
Rainbows have all colors of the spectrum: red, orange, yellow, green, blue and violet. But rainbows never include the color purple, because purple is not a true color.