The color picker helps customers easily choose a color that they would like the product to be customised to. This helps them get the exact color that they desire & it also makes it easier for the store owner to get the exact color details.
1)Under admin follow this navigation: System->Configuration->Strapp Extensions->Color Picker and enable this feature.
2)Create custom option for product with Input Type as text field. Title of the option should be “Color”, else color picker will not display on the product details page.