Exploring the Color #66B6A4

#66B6A4 sits at 167° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 35% saturation and 56% lightness, it reads as a softly muted, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 102, 182, 164 produces a 8.79:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #66B6A4 is a distant relative of CSS steel blue — about 63 units away from #4682B4. Designers reach for cyan hues at this saturation when the brief calls for a conversational, mid-energy register, 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