Exploring the Color #1B402E

#1B402E sits at 151° on the color wheel, placing it in the spring green family of the cool half of the spectrum. With 41% saturation and 18% 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 27, 64, 46 produces a 11.54:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #1B402E is a distant relative of CSS forest green — about 76 units away from #228B22. 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