Exploring the Color #104021

#104021 sits at 141° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 60% saturation and 16% lightness, it reads as a moderately saturated, deep tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 16, 64, 33 produces a 11.82:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #104021 is a distant relative of CSS green — about 74 units away from #008000. 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 weight, depth, and grounded contrast. On screen the cool cast tends to pair best with warm neutrals in the 25°-45° range to add life.

Darkening Shades

Lightening Shades