Exploring the Color #18313B

#18313B sits at 197° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 42% 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 24, 49, 59 produces a 13.62:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #18313B is a distant relative of CSS black — about 80 units away from #000000. 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