eCommerce · Free browser tool
Product Photo Background & Contrast Checker
Instantly inspect product images for Amazon/eBay white background compliance and contrast ratio.
Drag & drop a product photo
or click to browse · JPG, PNG, WebP · up to 25 MB
Analysis settings
Results update instantly as you adjust tolerance.
This checker samples the outer border pixels as your background and estimates subject contrast using the WCAG relative luminance formula. It is an independent heuristic, not an official Amazon or eBay compliance tool—always verify against current marketplace image policies before publishing.
Preview
Upload a product photo to run the background & contrast check.
Frequently Asked Questions
Why do Amazon and eBay require a pure white background?
Both marketplaces require main product images to sit on a pure white (RGB 255, 255, 255) background so listings look consistent, load predictably, and let the product itself stand out in search grids. This tool samples the outer border pixels of your photo and reports what percentage are close enough to pure white, based on an adjustable tolerance for lighting or compression noise.
How is the Contrast Ratio calculated?
The checker estimates your background color from the border pixels, then classifies the remaining pixels as either background-like or subject-like based on color distance. It computes the WCAG relative luminance of each group and applies the standard contrast ratio formula, the same one used for accessibility color contrast, as a proxy for how visually distinguishable your product is from its background. A ratio at or above 3:1 (WCAG's non-text contrast minimum) is treated as Compliant here.
How does this affect my listing's profit and exposure?
Marketplaces can suppress, flag, or reject main images that fail background requirements, which delays your listing going live and can hurt click-through and conversion once search traffic starts flowing. Catching a near-white-but-not-quite background or a low-contrast product before you upload avoids review delays and protects the ad spend and organic ranking tied to that listing.
Is this an official Amazon or eBay compliance tool, and is my photo uploaded anywhere?
No—this is an independent heuristic checker, not an official marketplace tool, so always verify against current Amazon Seller Central and eBay Picture Standards before publishing. Every pixel calculation runs locally in your browser using the Canvas API; your product photo is never uploaded to a server.
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Pure White Background & Contrast Requirements for Amazon and eBay in 2026
Amazon requires the main image on most listings to sit on a pure white (RGB 255, 255, 255) background, and eBay strongly recommends the same for a clean, professional look in search results. The rule exists so every product tile in a search grid renders consistently—no gray halos, no off-white color casts from indoor lighting, and no visible shadows creeping in from the edges of the frame.
In practice, very few real photos hit exactly 255 on every border pixel—camera sensors, JPEG compression, and ambient lighting all introduce small variations. This checker samples the outer border pixels of your photo (the region a pure-white background should occupy) and reports what percentage fall within an adjustable tolerance of true white, so you can judge whether a photo needs another editing pass before it goes through a marketplace's official image review.
Contrast matters just as much as background color: a pale product photographed on white can blend into its background and lose visual weight in a crowded search grid, even if the background itself is technically compliant. This tool estimates your subject's color and compares its brightness to the background using the same relative luminance formula behind WCAG accessibility contrast checks, then reports a ratio and a Compliant / Non-Compliant call against a 3:1 threshold—the WCAG minimum for distinguishing shapes from their background.
This free Product Photo Background & Contrast Checker runs entirely in your browser using the Canvas API—upload a photo to see background purity, average background and subject color, and contrast ratio update instantly. Nothing is uploaded to a server, so you can vet new product photography privately before submitting it to Amazon Seller Central or eBay.