Spot colours can be used without the AH Formatter PANTONE® Option. However, it is necessary to provide one or both of the equivalent RGB and CMYK colours for use with media that does not support separations for spot colours. If either of the RGB or CMYK equivalent is omitted, it is calculated from the components of the other equivalent colour.
rgb-icc(<R>, <G>, <B>, #Separation, <Name>, <Tint, <C>, <M>, <Y>, <K>) : Spot colour with name, tint, and both CMYK and RGB fallback colours.
rgb-icc(<R>, <G>, <B>, #Separation, <Name>, <Tint) : Spot colour with name, tint, and RGB fallback colour.
rgb-icc(<R>, <G>, <B>, #Separation, <Name>, <Tint) : Spot colour with name and RGB fallback colour.
rgb-icc(#Separation, <Name>, <Tint, <C>, <M>, <Y>, <K>) : Spot colour with name, tint, and CMYK fallback colour.
Similarly to PANTONE® colours, when the formatted document is commercially printed, each CMYK spot colour can have a separate printing with the specific ink for that colour. The grayscale levels in the separation for each colour correspond to the level of tint to apply.