# Primary color
Radio buttons allow the user to select one option from a set.
| Class name | Type | |
|---|---|---|
| form-control | Component | Container element |
| radio | Component | For radio input |
| radio-primary | Modifier | Adds `primary` to radio |
| radio-secondary | Modifier | Adds `secondary` to radio |
| radio-accent | Modifier | Adds `accent` to radio |
| radio-success | Modifier | Adds `success` to radio |
| radio-warning | Modifier | Adds `warning` to radio |
| radio-info | Modifier | Adds `info` to radio |
| radio-error | Modifier | Adds `error` to radio |
| radio-lg | Responsive | Large radio |
| radio-md | Responsive | Medium radio (default) |
| radio-sm | Responsive | Small radio |
| radio-xs | Responsive | Extra small radio |