Generate a color palette from a logo

The short answer

You can build a color palette from a logo in two ways. You can read the exact color values stored in the artwork, or you can sample colors from an image of the logo. If you have a true vector file, the first method gives you the colors the designer actually specified. If you only have a raster image, such as a screenshot, a JPEG or a PNG, a palette generator can only estimate those colors from pixels. The result can be close, but it is not authoritative.

The most reliable source of a logo's colors is the brand's own guidelines, if they exist. Extraction comes next, and the quality of the source file determines how far you can trust it.

Which kind of file you have changes the answer

Before you trust any extracted palette, find out what the logo file actually contains. A file extension alone will not tell you. A file saved in a vector format can still hold only an embedded raster image. In that case, you cannot read clean color values from paths, because no paths exist.

Source | What it contains | What extraction gives you

Vector artwork with editable paths | Shapes whose fills and strokes carry defined color values | The exact specified colors, including gradient stops

Vector file with an embedded raster image | A pixel image placed inside a vector container | Estimated colors only, sampled from the embedded pixels

Raster image or preview (screenshot, JPEG, PNG) | A grid of pixels, often with compression and anti-aliasing | Approximate colors, plus intermediate shades that were never part of the design

To check what you have, open the file in a vector editor. Select individual shapes and see whether they show editable paths with their own fill settings, or whether the whole logo selects as a single placed image.

Extracting colors from vector artwork

Each shape in a vector logo stores its fill and stroke colors as data. Vector editors can usually list the colors used in a document or show the values of whatever you select. For SVG files, the values are visible in the markup itself. This makes it possible to record the exact values without any sampling.

• Inspect every distinct shape, including small details, outlines and any hidden or locked layers.
• Record each color in the color mode it was defined in, such as RGB, CMYK or a named spot color.
• Note whether a color is a flat fill or part of a gradient.
• Combine true duplicates, but keep colors that are only nearly identical separate until you confirm whether the difference is intentional.

Handling logo gradients

Gradients are where automatic palette generators most often go wrong. A gradient is defined by a small number of color stops, and the software blends between them. Sample a gradient from a raster image and you get a series of in-between shades. Many tools will report those blended shades as palette colors, even though the designer never chose them.

In vector artwork, you can read the stops directly. In an SVG, they appear as stop elements inside a gradient definition. Each stop has an offset and a color. The illustrative snippet below shows the structure. The values are placeholders, not taken from any real logo.

<linearGradient id="brandGradient" x1="0" y1="0" x2="1" y2="0">
  <stop offset="0" stop-color="#RRGGBB" />
  <stop offset="1" stop-color="#RRGGBB" />
</linearGradient>

For a usable palette, record the stop colors as the palette entries. Document the gradient separately, including its direction, type (linear or radial) and stop positions, so it can be rebuilt. Stop colors can also carry their own opacity, which changes how the gradient looks over different backgrounds. Record that if it is present.

Extracting colors from a raster image

If a raster image is all you have, an image-based palette generator can still give you a useful starting point. Expect to clean up the result by hand.

• Use the largest, least compressed version of the logo you can find. Compression can shift colors and add noise.
• Sample from the center of solid areas, not near edges, where anti-aliasing blends the logo into the background.
• Ignore the background color unless it is part of the logo itself.
• For gradients, sample the two ends or other apparent stop points, and do not treat the blended middle as separate brand colors.
• Treat the output as an approximation and label it that way when you share it.

Screen colors also depend on the image's color profile and on how it was exported. Values sampled from a web image may not match the print colors specified for the same brand.

Screen colors versus print colors

Converting a color between modes is not a lossless round trip. A logo color defined for print, whether as CMYK or as a named spot color, cannot be recovered exactly from an RGB or hex value sampled on screen. A hex value converted to CMYK is also not the same as the brand's specified print value. If you need the palette for both screen and print, take each mode's values from the original artwork or from brand documentation. Do not convert one into the other and assume it matches.

Permission to use the colors and the artwork

Being able to download a logo, or to extract its colors, does not grant permission to modify or reuse its artwork. The same applies to its fonts and to the trademark it represents. Logos are commonly protected as trademarks, and the artwork and typefaces may carry their own terms. Studying a palette for analysis or inspiration is different from presenting work in a way that imitates another brand's identity. If you are working with a client's or employer's logo, check their brand guidelines and usage terms before you build on the palette.

What this article does not cover

No specific palette generator, logo or brand was evaluated for this article, so it does not compare individual tools or report measured accuracy. If you are choosing a tool, check whether it can read color values directly from vector files. Also check whether it can identify gradient stops rather than only sampling pixels, and whether it reports values in the color modes you need.