If the garment you are planning to dye has a light color and you are looking to dye it a darker color: Then all we recommend doing is following the standard instructions for how to use Rit All-Purpose Dye. If you are trying to get as dark of a color as possible, please also read our tips on how to get the darkest color possible.
If you are looking to: (a) dye a dark garment a lighter color or (b) completely change the color of a garment from one color to another (such as from purple to blue): Then you must first use Rit Color Remover to remove the color from the garment, bringing it to a white or off-white color. You will then have a blank canvas to achieve a true color with whatever dye you choose to use. Once the color is removed, follow the instructions for how to use Rit All-Purpose Dye.
*If you are dyeing something with a print or logo: If you use Color Remover, it will most likely not remove the color from a print or logo. Accordingly, the color you choose to overdye with will mix with the existing color(s) in the fabric and create new colors. In other words, the rules of color mixing apply. When selecting a color, think about how it will mix with the colors in the pattern. For example, if you were to use a blue dye on a white item with a pink flower pattern, the pink flowers will turn purplish (blue and pink make purple) while the rest of the fabric will dye blue. Even if you were to overdye the patterned garment with a dark color, you may find that the color will appear lighter along the patterned area.