#66D8D1 Hex Color
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#66d8d1 is a light, cool teal-cyan with pastel softness, gentle saturation, and a clean green undertone. Its fresh glow suits wellness, healthcare, spring, and technology interfaces, especially as a supporting background or 30% palette tone. Pair it with deep navy or warm coral for contrast. Black text remains highly readable, with about 12.3:1 contrast. The hex code is #66d8d1.
Questions about #66d8d1
What is #66d8d1 in RGB, HSL and CMYK?
In RGB, #66d8d1 is rgb(102, 216, 209), in HSL hsl(176, 59%, 62%) and in CMYK 53%, 0%, 3%, 15%.
What colors pair well with #66d8d1?
Does #66d8d1 read as a warm or cool color?
#66d8d1 reads as a cool color because its cyan-teal base carries a clear blue-green undertone, while its light value and gentle saturation soften the effect into a calm, clean, approachable look.
Is #66d8d1 readable on white or black?
#66d8d1 has a 1.70:1 contrast ratio on white and 12.30:1 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.