Exploring the Color #100866

#100866 sits at 245° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 85% saturation and 22% lightness, it reads as a fully saturated, deep tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 16, 8, 102 produces a 16.82:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #100866 is a clear variant of CSS navy — about 32 units away from #000080. Designers reach for blue 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