# CGColorConversionInfo An object that describes how to convert between color spaces for use by other system services. ``` class CGColorConversionInfo ``` ## Overview A [`CGColorConversionInfo`](/documentation/CoreGraphics/CGColorConversionInfo) object specifies a conversion between two or more color spaces, including information about the intent of the conversion. You use color conversion objects to specify the work to be done by an filter, which can then perform GPU-accelerated image conversion. ## Topics ### Creating a Color Conversion [`init?(src: CGColorSpace, dst: CGColorSpace)`](/documentation/CoreGraphics/CGColorConversionInfo/init(src:dst:)) Creates a conversion between two specified color spaces. [`init?(optionsSrc: CGColorSpace, dst: CGColorSpace, options: CFDictionary?)`](/documentation/CoreGraphics/CGColorConversionInfo/init(optionsSrc:dst:options:)) [`extern CGColorConversionInfoRefCGColorConversionInfoCreateFromList(CFDictionaryRef options, CGColorSpaceRef , CGColorConversionInfoTransformType , CGColorRenderingIntent , ...);`](/documentation/CoreGraphics/CGColorConversionInfoCreateFromList) Creates a conversion between an arbitrary number of specified color spaces. [`enum CGColorConversionInfoTransformType`](/documentation/CoreGraphics/CGColorConversionInfoTransformType) Constants describing how a color conversion uses color spaces. ### Color Conversion Options Use these keys in the options dictionary when calling `CGColorConversionInfoCreateFromList`. [`class let conversionBlackPointCompensation: CFString`](/documentation/CoreGraphics/CGColor/conversionBlackPointCompensation) An option for whether to apply black point compensation when converting between color profiles. ### Working with Core Foundation Types [`class var typeID: CFTypeID`](/documentation/CoreGraphics/CGColorConversionInfo/typeID) Returns the Core Foundation type identifier for a color conversion info data type. ### Instance Methods [`func convert(width: Int, height: Int, to: UnsafeMutableRawPointer, format: CGColorBufferFormat, from: UnsafeRawPointer, format: CGColorBufferFormat, options: CFDictionary?) -> Bool`](/documentation/CoreGraphics/CGColorConversionInfo/convert(width:height:to:format:from:format:options:)) ### Initializers [`init?(src: CGColorSpace, srcHeadroom: Float, dst: CGColorSpace, dstHeadroom: Float, toneMapping: CGToneMapping, options: CFDictionary?, UnsafeMutablePointer?>?)`](/documentation/CoreGraphics/CGColorConversionInfo/init(src:srcHeadroom:dst:dstHeadroom:toneMapping:options:_:)) ## Relationships ### Conforms To [`Hashable`](/documentation/Swift/Hashable) [`Equatable`](/documentation/Swift/Equatable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)