Open Sans font (Sans Serif font) pairing with Bluu font (Serif font)

Examples of websites using Open Sans (Open Sans is a sans-serif font designed by Steve Matteson. It offers a wide range of styles, including regular, italic, bold, bold italic, and light) with Bluu (Bluu is a sans-serif font designed by Jean-Baptiste Morizot and released by Velvetyne in 2013. The family consists of five different styles, each available in regular and italic, offering a range of options for typographic projects)