What is blue dye on green hair?

Blue dye on green hair can create a unique and bold look. However, achieving the desired result can be challenging as the two colors can clash and create unwanted tones. It is recommended to lighten the green hair to a lighter shade or bleach it before applying blue dye to ensure that the color shows up vibrantly. It is also important to use a high-quality dye and follow the instructions carefully to avoid damaging the hair. Additionally, proper maintenance, including regular deep conditioning and avoiding hot tools, can help to maintain the color and prevent fading.