Cool Cobalt Fold

#1d3e9f

Notes

Cool Cobalt Fold (#1D3E9F) is a true blue with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (225°, 69%, 37%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX

#1d3e9f

RGB

rgb(29, 62, 159)

HSL

hsl(225, 69%, 37%)