how to get styling theme dynamically from an image via javascript

can u please help me out with this, or at least get me started, am trying to create an image library with some textual information on the side, just like on itunes desktop app(i'll upload an image), what i'll like to achieve, via some genius help is, how to get a styling theme for the background and the text color that blend with the image. please check out the image to visually grasp the concept.am not yet allowed to embed images yet so pls just click the link below to view