Fix Non-Pure White Background
Fix off-white or slightly gray backgrounds that cause marketplace rejection. Ensure your white background is exactly #FFFFFF (RGB 255,255,255) for Amazon, eBay, and Etsy.
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Verifying True White Before You Upload
Two different problems get lumped together as "white is not pure": the file genuinely contains off-white pixels, or the file is perfect and your monitor is rendering it warm. The eye cannot tell them apart, so the only reliable check is sampling actual pixel values. That takes thirty seconds and settles which problem you have.
The three-point eyedropper check
Open the export in any editor and sample three spots: a corner, the middle of the background, and a point a few pixels from the subject edge. Corners and mid-field prove the canvas is 255, 255, 255. The near-edge sample matters most, because compression artifacts cluster along high-contrast boundaries.
Where JPEG hurts and where it does not
A large flat white field survives high quality JPEG intact. What JPEG adds is a faint ring of 250 to 254 values hugging the subject outline. High quality exports keep that halo to a pixel or two, which passes in practice, but if a listing has already been rejected for background color, re-export as PNG to remove compression from the equation entirely.
Warm screens lie about white
Night mode, True Tone, and low brightness all render 255 white as cream. If the eyedropper reads 255, 255, 255 but the image looks grey on screen, the file is compliant and the display is the illusion. Marketplaces check the file, not your monitor.
Do not brighten your way out
Pulling levels or curves to push an off-white background up to 255 also pushes the product highlights, blowing out reflective packaging and pale fabrics. Re-processing the original with a solid white preset replaces the background exactly without touching a single product pixel.
When a marketplace bounces an image for background color, verify with the eyedropper first. Half the time the file was already compliant and the real failure was frame fill or resolution listed in the same rejection notice.
The Problem
After adding a white background, the result is not pure white (#FFFFFF). The background appears slightly gray or off-white, which causes rejection on marketplaces like Amazon that require exact pure white backgrounds for product listings.
Common Causes
Step-by-Step Solutions
Select the pure white preset in Change Background tab
Go to the Change Background tab and select the white color preset from the solid colors section. This sets the background to exact #FFFFFF, which is pure white at RGB(255, 255, 255).
Ensure you are using solid white, not a gradient
Check that the background type is set to Solid Color, not Gradient or Pattern. White gradients will have non-white areas that fail marketplace validation. The solid white option provides uniform pure white.
Download as PNG for exact color preservation
Use PNG format when downloading your image. PNG is lossless and preserves the exact #FFFFFF color value. JPEG compression can shift white pixels to slightly off-white values (e.g., 252, 253, 254).
Verify in an image editor that background reads RGB(255,255,255)
Open the downloaded image in any image editor and use the color picker or eyedropper tool on the background area. Confirm it reads R:255, G:255, B:255. This is the exact value marketplaces require.
Prevention Tips
Frequently Asked Questions
Related Resources
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