#66DDB6 Hex Color

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Hex color #66ddb6 graphic
#66ddb6 is a bright, high-chroma pastel with a strong cool bias. This sparkling shade works well as a refreshing background color, though it can overwhelm if used too broadly. It pairs beautifully with charcoal grays or deep plums for a balanced, modern look. Because it offers strong contrast against black text, the hex code #66ddb6 is an excellent choice for clean, accessible UI design.

Questions about #66ddb6

What is #66ddb6 in RGB, HSL and CMYK?
In RGB, #66ddb6 is rgb(102, 221, 182), in HSL hsl(160, 64%, 63%) and in CMYK 54%, 0%, 18%, 13%.
What colors pair well with #66ddb6 in a design layout?
#66ddb6 balances best against high-contrast neutrals like charcoal or deep, saturated hues such as plum. These pairings prevent the high-chroma green from feeling too washed out while maintaining a sophisticated, modern aesthetic for user interfaces.
Is #66ddb6 readable on white or black?
#66ddb6 has a 1.66:1 contrast ratio on white and 12.58:1 on black. WCAG asks for 4.5:1 for body text and 3:1 for large text, so on white it is too faint for text and on black it works for body text. Try other pairs in the contrast checker.