As all vector graphics are built of vectors and colors, you will have to tune the colors.
First of all, you should use the [url=http://man.calamus.net/us/mod/cfc/] Color List Converter [/url] in order to see all used colors in your document color list.
Then you can edit the colors which are used by the vector graphic.
Grüße / Greetings / Groetjes / Salutations,
Ulf Dunkel