Exploring the Color #125E5B

#125E5B sits at 178° on the color wheel, placing it in the cyan family of the cool half of the spectrum. With 68% saturation and 22% lightness, it reads as a richly saturated, deep tone — a weighted, dramatic presence with deep undertones. Its RGB mix of 18, 94, 91 produces a 7.56:1 contrast ratio against white, which clears WCAG AAA for body text in that pairing.

In RGB space #125E5B is a clear variant of CSS sea green — about 53 units away from #2E8B57. 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

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