Open Color Format palette
File type: Settings, options, themes or skins file
An oco file is a color palette saved in the Open Color Format used by Open Colors Tools.
File type category:
Settings, options, themes or skins file
Date updated: November 2, 2026
Open Colors Tools is an application for Apple macOS, formerly known as Mac OS X. It allows users to define and organize colors in palettes.
An oco file stores a color palette in the Open Color Format used by Open Colors Tools.
Open the oco file with Open Colors Tools on Apple macOS. If the file is not associated with the application, use the application's Open command and select the file.
Software applications that can open oco files:
Apple macOS / Mac OS X
Software apps that create oco files:
Apple macOS / Mac OS X
Software apps that manage or store settings in oco files:
Apple macOS / Mac OS X
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