Can I change the background color after I have already saved the image as JPG?

No, because JPG does not support transparency. You need the original transparent PNG to change the background color again. Always keep that master file.

What hex code should I use for a pure white background?

Pure white is RGB 255, 255, 255, which is hex #FFFFFF. Use this code for a clean white background that meets most marketplace requirements.

How do I add a gradient background instead of a solid color?

Create a new layer below the subject and apply a gradient fill. Most image editors let you choose two or more colors and set the direction. The subject stays on top with its shadow visible.

Do I need to keep the shadow when I change the background color?

Yes. A soft shadow under the subject makes it look placed rather than floating. If the removal process removes the shadow, you may need to add a new one manually or choose a removal method that preserves it.

How to Change a Photo's Background Colour

Strip the original background, then drop a new colour layer behind the cutout. Two steps. That is the whole job. Use a solid brand hex, a gradient, or a studio sweep. The method does not change whether you are shooting product squares for a storefront or key art for a social post. Get the master file right and every export after it is fast.

Remove the Original Background First

Pull the existing scene away from the main element with any removal tool that gives you a clean edge. What you want at the end is a PNG sitting on a checkerboard, nothing behind it. That transparent file is your master. Keep it. Name it something you will recognise, because you will reuse it every time you need a different backdrop colour without repeating the cutout work.

If the cutout has a soft drop shadow or fine edge detail, check that the removal held onto it. A sliver of natural shadow underneath stops the final image looking like a sticker floating above the new colour.

Choose Your Background Colour

Solid Colours and Hex Codes

Pick a hex code. Black is #000000. Pure white is #FFFFFF. Grab the brand value from your style guide or pull it with a colour picker. Use the same hex across a whole product range and the catalogue locks together visually. Consistency does half the selling.

Gradients and Other Effects

A gradient blends two or more colours across the frame. It works for social graphics, posters, anything where a flat tone feels too safe. Place the gradient layer behind the cutout, same as you would a solid fill. Most editors let you drag the direction and set colour stops right on the canvas.

Add the New Colour Layer

With the cutout open and showing transparency, do this:

Open the master PNG in your editor.
Create a new layer below the cutout.
Fill that layer with your solid colour or gradient.
Nudge the cutout into position if it shifted.
Zoom in and check the edges. The shadow should read as natural, not painted on.

A soft shadow sitting over the new colour layer is what sells the placement. It stops the whole composition reading as a cut-and-paste job.

Export for Your Use Case

Once a solid backdrop is locked in, the file no longer needs transparency. Export as JPG. Smaller file, accepted everywhere. Marketplaces, social feeds, email. A gradient background works the same way because the blend is part of the flat image.

Do not throw away the master PNG. Ever. Save it as product_transparent.png and export a JPG copy for each colour you need. That master is the asset; the JPGs are disposable.

When to Use PNG Instead

Keep the PNG with its transparency intact if the image will sit on a website or document that already has a coloured background. The cutout blends into whatever is behind it. For a final image with a solid fill, JPG is the practical choice.

Brand Colour Consistency

One hex code, applied to every photo in the set, creates a catalogue that customers read at a glance. Pick the value, write it down, and reuse it exactly. No guessing later.

For a large product line, batch the work. Drop the same colour layer behind every cutout and export them together. Every image matches, and the job is done once.

Common Mistakes to Avoid

Discarding the master PNG. Without it, changing the colour means repeating the entire removal.
Picking a colour that fights the product. Test the hex on a small crop first.
Losing the shadow. A soft shadow underneath makes the item look placed. Check that the removal held onto it.
Exporting to JPG while you still need transparency. JPG flattens everything. Export to JPG only after the background colour is final.

Tools That Can Help

Plenty of editors and browser-based services handle removal and recolouring in one workflow. Some are free. Removebg.pictures, for instance, strips the background and hands you a clean PNG. Take that file into any image editor, add your colour layer, and export. The sequence never changes: remove, layer, export as JPG. The tool matters less than keeping the master.