#82D9C5 Hex Color

Black text works best on Tender Turquoise, with a contrast ratio of about 12.7:1. That clears the WCAG AA threshold of 4.5:1, even for small body text. White text falls far short and should be avoided.

Deep navy and charcoal ground its lightness well, while a warm coral makes a lively accent. Keep Tender Turquoise as the dominant base and use darker shades for text and structure.