What are the principles of colour selection when dying hair?

The principles of color selection when dyeing hair include understanding the color wheel, skin tone compatibility, and desired outcome. Choosing a shade that complements the individual's skin tone—whether warm, cool, or neutral—ensures a harmonious look. Additionally, considering the hair's natural undertones and the level of lift required can affect the final result, making it essential to select colors that work well with these factors. Lastly, it's important to assess the maintenance level of the chosen color, as some shades require more upkeep than others.