Exploring the Color #81F6B9

#81F6B9 sits at 149° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 87% saturation and 74% lightness, it reads as a fully saturated, light tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 129, 246, 185 produces a 15.82:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #81F6B9 is a distant relative of CSS sky blue — about 64 units away from #87CEEB. Designers reach for spring green hues at this saturation when the brief calls for bold, immediate signal, 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