bootstrap error text color code example
Example 1: bootstrap color
primary - #007bff
secondary - #6c757d
success - #28a745
danger - #dc3545
warning - #ffc107
info - #17a2b8
light - #f8f9fa
dark - #343a40
muted - #6c757d
white - #ffffff
Example 2: bootstrap bg-light color code
/* class bg-light color code is---*/
background-color:#f8f9fa;