Colors

These are primary theme colors. They are used for all the elements including buttons, alerts, background, etc.

Background

Use the contexual class to have background with different shades. E.g. .bg-{primary|secondary|success|danger|info|warning}

Each color has a translucent shade too. It adds a little transparency. E.g. .bg-soft-{primary|secondary|success|danger|info|warning}

Text Colors

Even your text can have the contexual color. E.g. .text-{primary|secondary|success|danger|info|warning}