Cool Cobalt Silk

#303b5f

Notes

Cool Cobalt Silk (#303B5F) is a deep blue with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (226°, 33%, 28%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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

#303b5f

RGB

rgb(48, 59, 95)

HSL

hsl(226, 33%, 28%)