Most likely if you have changed your hair color it is your desire to keep your new tint looking rich and luxurious. There are some treatments that will help the color last and others will dull or strip it. Hot oil treatments are something that you will want to limit or use with caution to maintain vibrancy.
Hot oil treatments are known to contain high levels of acidity such as if you perform a treatment with olive oil. The oil will strip the color and there goes your gorgeous new shade. Nevertheless, do not despair you can still perform hot oil treatments even after taking a hair color leap. To do so, you will need to look for a product that has been specifically formulated for color-treated hair in order to maintain your dye job.