Exploring the Color #99D3C5

#99D3C5 sits at 166° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 40% saturation and 71% lightness, it reads as a moderately saturated, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 153, 211, 197 produces a 12.48:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #99D3C5 is a clear variant of CSS sky blue — about 42 units away from #87CEEB. 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 lift, air, and gentle emphasis. On screen the cool cast tends to pair best with warm neutrals in the 25°-45° range to add life.

Darkening Shades

Lightening Shades