we are building an web application to design print products online. There are also some special finishes available for print. For example gold foil. There for we have to define the color in the final PDF in a specific way. It has to be a spot color with 100% magenta (c0 m100 y0 k0) and th color name "goldfoil".
In the design tool we are using a color with a hex code that is looking similar to gold in the browser (#9C9475). Our application is creating SVG that is converted via ghostscript to the PDF.
What I now want to achieve is to define a fallback or exchange color for specific hex colors like in this example #9C9475 that will convert this color in the PDF to the above described spot color.
Will this be possible? I found an article that svg 1.1 and above is supporting ICC Profiles and can produce CMYK and ICC named colors. In the documentation it says that I can define spot color in this way:
<color-profile name=„ISOcoated_v2_eci" xlink:href="http://swatches.example.com/ISOcoated_v2_eci.icc"/>
<circle fill=„#9C9475 icc-color(ISOcoated_v2_eci, Goldfolie"/>
But then I am missing the CMYK values.
Can somebody help me in this case?