Exploring the Color #4BC57E

#4BC57E sits at 145° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 51% saturation and 53% lightness, it reads as a moderately saturated, balanced tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 75, 197, 126 produces a 9.59:1 contrast ratio against black, which clears WCAG AAA for body text in that pairing.

In RGB space #4BC57E is a distant relative of CSS sea green — about 76 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