Exploring the Color #403957

#403957 sits at 254° on the color wheel, placing it in the blue family of the cool half of the spectrum. With 21% saturation and 28% 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 64, 57, 87 produces a 10.82:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #403957 is a distant relative of CSS dim gray — about 66 units away from #696969. Designers reach for blue hues at this saturation when the brief calls for restraint and atmosphere, 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