How Light Does Your Hair Have To Be To Dye It Purple?
To achieve a vibrant and true-to-color purple shade, your hair needs to be lightened to a pale blonde or white color. This is because purple hair dye is a semi-permanent or permanent color, meaning it needs to penetrate into the hair cuticle to color it. If your hair is too dark, the purple color may come out muted or not show up at all. It’s important to consult with a professional colorist to determine the best lightening process for your hair type and color.