Red food dye may give really bright color, but it's not a dreadful stain to get out of your clothes if you accidentally spill dye. Quick action is the best when dye strikes your clothes, but even if you notice it way after the fact, don't lose hope. Treat anything washable, but if your garment says "Dry Clean Only" it's best to leave stain busting to the pros. Just give them a heads up on what to expect.
Dab a fresh stain with a wet sponge. Use cool or cold water since hot water can set the stain and potentially ruin your goods. If the stain's old, don't worry about sponging it.
Combine 1/4 cup of either oxygen or chlorine bleach with 1 gallon of cool water. Chlorine bleach works well for whites and oxygen bleach keeps your colored fabrics bright but still gets out the red.
Soak your dyed garment in the bleach solution for half an hour. Swirl the clothes through the liquid to immerse the fabric completely, then let the bleach do its thing to get the stain out.
Remove the clothes from the bleach solution and rinse them thoroughly under cool water to get all the bleach out.
Wash the goods in your washing machine using liquid laundry detergent. Follow the care label on your clothing to determine the best water temperature, then dry your goods following the care label.