We'll create fresh WordPress site with WP Image Color Palette installed. You have 20 minutes to test the plugin after that site we'll be deleted.
You can find your image swatches in the post meta. There are two global php functions to get these values:
wpip_get_post_thumbnail_color( int|WP_Post $post )
Gets the main rgb color from a post.
wpip_get_post_thumbnail_colors( int|WP_Post $post )
Gets the main rgb colors from a post.
Advanced users may also like the following functions to extract the colors from any image they want in WordPress.
wpip_get_image_color( string $file, int $precision = 20, int $palette_length = 5 )
Gets the main color from an image.
wpip_get_image_colors( string $file, int $precision = 20, int $palette_length = 5 )
Gets the image color palette.