Exploring the Color #557D63

#557D63 sits at 141° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 19% saturation and 41% lightness, it reads as a heavily muted, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 85, 125, 99 produces a 4.67:1 contrast ratio against white, which clears WCAG AA for body text in that pairing.

In RGB space #557D63 is a clear variant of CSS dim gray — about 29 units away from #696969. 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