Exploring the Color #0D373B

#0D373B sits at 185° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 64% saturation and 14% lightness, it reads as a moderately saturated, deep tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 13, 55, 59 produces a 12.91:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #0D373B is a distant relative of CSS black — about 82 units away from #000000. Designers reach for cyan 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