Exploring the Color #664B87

#664B87 sits at 267° on the color wheel, placing it in the violet family of the cool half of the spectrum. With 29% saturation and 41% lightness, it reads as a softly muted, shadowed tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 102, 75, 135 produces a 7.19:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #664B87 is a clear variant of CSS dim gray — about 43 units away from #696969. Designers reach for violet hues at this saturation when the brief calls for restraint and atmosphere, and at this lightness when they want a present, comfortable mid-canvas voice. On screen the cool cast tends to pair best with warm neutrals in the 25°-45° range to add life.

Darkening Shades

Lightening Shades