Exploring the Color #1D403E

#1D403E sits at 177° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 38% saturation and 18% lightness, it reads as a softly muted, deep tone — a balanced mid-energy presence that sits comfortably alongside other UI tones. Its RGB mix of 29, 64, 62 produces a 11.32:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #1D403E is a distant relative of CSS forest green — about 80 units away from #228B22. Designers reach for cyan 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