Exploring the Color #66A5A6

#66A5A6 sits at 181° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 26% saturation and 53% lightness, it reads as a softly muted, balanced tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 102, 165, 166 produces a 7.50:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #66A5A6 is a clear variant of CSS steel blue — about 49 units away from #4682B4. Designers reach for cyan hues at this saturation when the brief calls for restraint and atmosphere, and at this lightness when they want a present, comfortable mid-canvas voice. On screen the cool cast tends to pair best with warm neutrals in the 25°-45° range to add life.

Darkening Shades

Lightening Shades