ACO File Documentation

Overview

Feature Value
File Extension .aco
Full Name Adobe Photoshop Color Swatch File
MIME Type application/x-photoshop
File Type Color Swatch File
Developer Adobe Systems
Primary Association Adobe Photoshop
Usage To store a collection of colors used in Photoshop
File Structure Binary
Editable Yes, with Adobe Photoshop or similar software
Compatibility Primarily compatible with Adobe Photoshop
Open Standard No
Versioning Supports multiple versions for different Photoshop releases
Color Models Supported RGB, CMYK, LAB, and others
Number of Colors Per Swatch Variable, depending on the file
File Size Variable, typically small (KB range)
Can Store Gradients No, only solid colors
Creation Method Can be created within Adobe Photoshop or with third-party tools
Embeddable in Other Files Yes, within certain Adobe file formats
Support for Transparency No
Platforms Supported Windows, macOS
Use Cases Graphic design, Web design, Professional photo editing