Let’s turn off our lights at Earth Hour! Help protect the planet by spreading awareness about Earth hour—and what better way to do it than social media posts? This design from Canva is especially made for Instagram, with its square format and stunning background photo showing a star-studded violet sky. White typeface makes the text stand out cleanly—the title is emphasized in large letters, and a rectangle is placed around the date to catch people’s attention. You can also add a link to your website and tweak the colors and font with Canva’s editor.