develop custom extension in magento, which processes image of product and tags with prominent color codes -

develop custom extension in magento, which processes image of product and tags with prominent color codes -

i have been struggling in figuring out how can tag product color , when user selects color color picker, user should products tagged particular color or near hex codes.

a simple solution create 2 product attribute main_color , related_colors, main_color should single selection input type , should searchable while related_color should multi-selectbut not searchable. can assign 1 main color product , multiple related color shades. on frontend have custom code, related_color attribute value,extract related color codes , fetch products having main_color value.

hope makes sense.

magento