Exploring the Color #0A5889

#0A5889 sits at 203° on the color wheel, placing it in the azure family of the cool half of the spectrum. With 86% saturation and 29% lightness, it reads as a fully saturated, shadowed tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 10, 88, 137 produces a 7.58:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #0A5889 is a clear variant of CSS teal — about 42 units away from #008080. Designers reach for azure hues at this saturation when the brief calls for bold, immediate signal, 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