Select the proper leather recoloring kit. Kits are designed to work for either leather couches or aniline leather couches. Knowing the difference is important, as the dyes must be chemically compatible with the dyes present on your couch. Check your receipt or the care label on your couch to determine which type of leather your couch was made from.
Choose the best color for your couch. You can either select a stock dye that you like the look of, or send a leather swatch from the furniture store to the dye manufacturer and get a custom batch of dye that is made to match your swatch.
Clean your couch. Your kit's contents may vary slightly based on manufacturer, but should contain a leather-safe cleaning solution and a cleaning brush. Use these items to remove surface filth from your leather couch, which will prepare the surface for an even coat of color.
Apply several thin layers of dye from your DIY leather recolor kit. To cover the couch, you will need around a quart of color to adequately cover your couch, applied in a total of three thin layers. Make sure to let every coat dry completely before adding the next layer.
Wait 24 hours after applying the final coat of color to your couch. This will prevent the dye from puckering or rubbing off on your clothes.
Work leather conditioning cream into the grain of the leather using a chamois cloth. This will help to lock in the color and give the surface of a couch a supple appearance.