What color looks best on resume?
Black and white create the highest contrast possible, so it is considered one of the best color schemes to use on a resume. You can choose a pale background and intensive dark lettering. Just keep in mind that your resume may be printed in black and white, so don't use pale on pale.
Should a CV have Colour?
You shouldn't include colour in your CV, unless used sparingly to draw attention to key aspects of the document. For example, highlighting headings in a pale shade of blue can ensure your CV's sections are clearly separated. But colour isn't necessary in your CV and it is something you should avoid in large quantities.