Sesame Street is the most rigorously designed children's media program in history — every color, letterform, and character shape tested with child-development psychologists before reaching the screen. The result is a visual language of saturated TV-broadcast primaries, chunky black outlines, and felt-textured surfaces that says "learning is bright, friendly, and hand-crafted."

Big Bird yellow and Cookie Monster blue anchor the palette, with Elmo red as the playful third voice. Typography is rounded and chunky, geometry is blob-shaped and imperfect, and every surface carries the warmth of Henson's puppet workshop — never slick, never minimal, always welcoming.