Exploring the Color #18C9C0

#18C9C0 sits at 177° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 79% saturation and 44% lightness, it reads as a richly saturated, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 24, 201, 192 produces a 10.15:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #18C9C0 is a clear variant of CSS turquoise — about 49 units away from #40E0D0. Designers reach for cyan hues at this saturation when the brief calls for bold, immediate signal, 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