tulip permanent fabric dye (denim blue) tulip tulip fabric dye is your go-to solution for one-color dyeing, re-dyeing and dip dyeing. this formula utilizes the classic hot water dye method for ultra-rich, even dye coverage on natural and cotton/poly fabrics. looking for a specific shade? tulip fabric dyes are mixable so you can customize colors for every project. wake up your wardrobe, revive a faded favorite or brighten some pillow covers with beautiful, permanent color from tulip.