Unmissable and highly legible, Yellow and Deep Lyons Blue put a pure lemon against a strong cobalt navy, and the 8.3:1 contrast makes either one reliable for text. Sunflowers by a blue farmhouse door, road signs, a Scandinavian flag: the associations are all clear and direct. Excellent for wayfinding, sports branding or a playroom, though in interiors the yellow works best as an accent.