How to Change a Photo Background Color Online (Red / Blue / White)

Remove image backgrounds and swap background colors with Koutuxia. Export transparent PNGs or red, blue, or white solid backgrounds in seconds — free to use.

A plain, evenly-lit backdrop makes a portrait read as deliberate rather than snapped in a hallway. You don't need a studio for it — remove the original background with Koutuxia, then put the cutout on whatever solid color you want.

How to recolor

Step 1 · Remove the original background

Drop your photo into Koutuxia. AI cuts out the person, background goes transparent. Use Fine mode for cleaner hair edges.

Step 2 · Download transparent PNG

Download the cutout. Your portrait now floats on transparency, ready to drop onto any color.

Step 3 · Add a solid color

In any image tool (even slides), create a red/blue/white background, place the PNG on top, and export.

Picking a background color

·White: the safe default — neutral, prints cleanly, works anywhere
·Blue: softer than white, keeps dark hair and dark clothing from merging into the edge
·Red: high contrast, useful when the shot needs to stand out in a grid
·Note: you can also swap attire after the cutout, but that needs a separate tool

FAQ

Can Koutuxia output a red/blue background directly?

Koutuxia handles the hard part — removing the original background cleanly. Adding a solid color is trivial in any image tool. Built-in recoloring is on our roadmap.

Will it shave off the hair?

Try Fine mode for hair edges. Evenly lit photos with simple backgrounds are usually easier to cut cleanly.

Is it free?

5/day anonymous, 20/day signed-in. Free.

Does it work on mobile?

Yes. Open koutuxia.com in your phone browser, drag or pick a photo.

Remove the background first

Upload your photo, AI cuts it in seconds, then recolor.

Remove background free