Exploring the Color #213641

#213641 sits at 201° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 33% saturation and 19% lightness, it reads as a softly muted, deep tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 33, 54, 65 produces a 12.58:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #213641 is a distant relative of CSS sea green — about 89 units away from #2E8B57. Designers reach for azure 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