Extract a Website Gradient Palette from a URL

Contents

• [Use a gradient worksheet](#use-a-gradient-worksheet)
• [Separate gradient stops from semantic roles](#separate-gradient-stops-from-semantic-roles)
• [Check readability across the whole blend](#check-readability-across-the-whole-blend)
• [Decide what belongs in the final palette](#decide-what-belongs-in-the-final-palette)
• [Use this in your AI agent](#use-this-in-your-ai-agent)

To extract a website gradient palette from a URL, capture the gradient as a combination of source colors, direction, placement, and role. A useful result explains whether the gradient supports a hero, button, card, background, or decoration, then converts its stops into reusable colors without losing how the blend works.

Use a gradient worksheet

For every gradient you find, record:

This prevents a common mistake: copying the visible colors while losing the reason the gradient works. Two gradients may contain similar greens but behave very differently if one is a soft background wash and the other is a high-contrast call-to-action treatment.

The examples below show a captured Pangram reference described as a muted green direction and a related set of dark green, mid-green, and gray-green colors. Use them to compare how a restrained palette can create depth through tonal changes. They are inspiration for the review, not evidence that a target URL uses the same gradient or exact values.

Separate gradient stops from semantic roles

Start with the observed stops, then assign roles. A gradient might contain:

Those names describe the gradient first. Then connect them to interface jobs:

Do not turn every intermediate blend into a separate token. Most gradients need only their meaningful stops. If a color exists solely because the browser interpolates between two stops, preserve it in the gradient definition but do not promote it into a standalone role unless it appears elsewhere in the interface.

For a quick extraction, sample the beginning, middle, and end of the gradient. Add more stops when the blend changes direction, includes a hard transition, or overlays an image. If the gradient is radial, note the center and spread instead of forcing it into a left-to-right model.

Check readability across the whole blend

Text over a gradient must be checked at its weakest point, not only where it looks most legible. Move across the text area and identify the lightest and darkest background beneath each important line. A heading may work at the left edge and become difficult to read near the right edge as the gradient brightens.

Check primary headings, body copy, button labels, links, icons, and focus indicators. If readability changes too much, consider a darker overlay, a narrower text area, a different text color, or a less aggressive gradient. Do not use a vivid gradient as a substitute for a clear hierarchy.

Also review responsive behavior. A gradient that works across a wide hero may place its brightest stop behind text on a narrow screen. Record whether the direction, focal point, or stop positions change between desktop and mobile states. If you cannot verify another viewport, label the behavior as unknown rather than inferring it from the desktop capture.

Decide what belongs in the final palette

A gradient palette should usually contain three layers:

1. Raw observations: exact or approximate stops, sampled colors, and locations.
2. Gradient definitions: direction, shape, stop positions, opacity, and any image layer.
3. Semantic roles: hero background, decorative wash, primary action, selected state, or surface tint.

This structure keeps a visual reference useful for implementation. A developer can recreate the blend, while a designer can understand where it belongs. It also makes comparison easier: two sites may use similar stop colors but assign them to completely different roles.

When exporting or handing off the result, include a fallback solid color for each important gradient. The fallback should preserve readable text and a similar visual weight. Keep image-derived colors and temporary effects separate from the core palette, since they may not be stable across content changes.

A good final review asks five questions: Can the gradient be recreated? Are its meaningful stops named? Is its direction documented? Does text remain readable across the full area? Is the gradient a system color or a one-off visual treatment? If the answers are clear, the extracted palette is ready to guide a new design or a careful visual comparison.

Use this in your AI agent

> Review the website at [paste URL] and extract every meaningful gradient palette. For each gradient, identify its location, type, direction or focal point, stop colors and positions, opacity, image layers, responsive variations, and interface role. Separate meaningful source stops from colors created only by interpolation. Check heading, body text, button labels, links, icons, and focus indicators across the lightest and darkest parts of each gradient. Return raw observations, reusable gradient definitions, semantic roles, solid fallbacks, and a short list of unknowns. Compare the examples below for restrained muted-green palette ideas, but do not copy their values unless they are observed on the target page. Install Fudge for your AI agent.

Treat the image and gradient as separate layers first. Record the image, the gradient type, its direction or focal point, opacity, and the areas where the gradient is strongest. Then sample the gradient where it is visible without the image, such as an edge or a section with a relatively even background. If no clean area exists, label the colors as composite observations rather than claiming they are the original CSS stops.

For implementation, identify the gradient's job. A dark overlay behind a hero heading is usually a readability layer, while a tinted wash around an illustration may be decorative. These should not share the same token even if they use related colors. Save the image treatment separately from the core brand palette, since changing the photo can change the apparent color balance.

A useful handoff includes the original screenshot, approximate stop positions, overlay opacity, text placement, and a solid fallback. Ask the reviewer to test the treatment with a different image or content length. If the effect stops working, it belongs to the specific composition rather than the reusable color system.

Yes. Keep semantic colors and gradient recipes separate so each can be reused independently:

The values and positions above are only a format example. Replace them with stops verified on the target page. Add separate tokens for overlays when the gradient sits above an image, and include a fallback such as background-color: var(--color-brand-deep) before the gradient declaration.

Document the gradient's intended role beside the token. gradient.hero communicates more than gradient.green-1, and it helps prevent the same recipe from being reused on a button where text contrast may fail. Finally, test the result at the actual text positions and on narrow layouts. Matching the stops is not enough if the gradient's direction, crop, or focal point changes the readable area.

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