Exploring the Color #3F9361

#3F9361 sits at 144° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 40% saturation and 41% lightness, it reads as a moderately saturated, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 63, 147, 97 produces a 5.56:1 contrast ratio against black, which clears WCAG AA for body text in that pairing.

In RGB space #3F9361 is a close cousin of CSS sea green — about 21 units away from #2E8B57. Designers reach for spring green hues at this saturation when the brief calls for a conversational, mid-energy register, 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