What is dark green blue hair?

Dark green-blue hair can be achieved through a variety of methods, including dying the hair with semi-permanent or permanent hair dye in shades like forest green or navy blue, then layering the colors to create a complex, dimensional shade. This hair color can look bold and striking but also delicate and refined, depending on the specific shade and intensity. It is also important to note that maintaining this hair color requires regular touch-ups as well as special care, such as using sulfate-free shampoo and avoiding excessive heat styling.