color inherit bootstrap code example

Example 1: bootstrap background transparent

bootstrap class background transparent 
 bg-transparent

Example 2: select colopr bootstrap

.text-primary
.text-secondary
.text-success
.text-danger
.text-warning
.text-info
.text-light
.text-dark
.text-body
.text-muted
.text-white
.text-black-50
.text-white-50