Jewelblue
HSL
231° · 71% · 35%
Cobalt Opal
#1a2d99
Notes
Cobalt Opal (#1A2D99) 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 (231°, 71%, 35%) 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
#1a2d99
RGB
rgb(26, 45, 153)
HSL
hsl(231, 71%, 35%)