Exploring the Color #63A681

#63A681 sits at 147° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 27% saturation and 52% 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 99, 166, 129 produces a 7.30:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #63A681 is a clear variant of CSS gray — about 48 units away from #808080. Designers reach for spring green 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