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.ACO File Extension

File TypeAdobe Photoshop Color Swatch File

DeveloperAdobe Systems
4.1 (16 Votes)
CategorySettings Files

What is an ACO file?

An ACO file is a color file used by Adobe Photoshop, a raster graphics editing program. It stores a color swatch, which is a collection of predefined colors, along with the name of each color, which is displayed when hovering the mouse over the color in the color palette. ACO files are used for creating images that conform to certain color standards.

More Information

ACO files are useful for controlling colors for different publishing media, such as digital image files and paper prints. Several color swatch files are included with the Adobe Photoshop installation in the /Presets/Color Swatches/ directory, which include colors for the ANPA, FOCOLTONE, HKS, PANTONE, TOYO, and TRUMATCH standards.

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Programs that open ACO files
Updated 12/4/2018

About ACO Files

Our goal is to help you understand what a file with a *.aco suffix is and how to open it.

The Adobe Photoshop Color Swatch file type, file format description, and Mac and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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