1. Override Colors

For any change in colors : scss/variable.scss

                  
// colors
$white: #fff !default;
$gray-100: #ebf3f5 !default;
$gray-200: #e9ecef !default;
$gray-300: #dee2e6 !default;
$gray-400: #ced4da !default;
$gray-500: #959DB2 !default;
$gray-600: #868e96 !default;
$black: #000 !default;

// Color
$blue: #009efb !default;
$indigo: #6610f2 !default;
$purple: #6f42c1 !default;
$pink: #d63384 !default;
$red: #F55151 !default;
$orange: #fd7e14 !default;
$yellow: #FAAB34 !default;
$green: #04B440 !default;
$teal: #20c997 !default;
$cyan: #539bff !default;

// Main Colors
$primary: #009efb !default;
$secondary: #963BF1 !default;
$success: #04B440 !default;
$info: #009efb !default;
$warning: $yellow !default;
$danger: $red !default;
$light: $gray-200 !default;
$muted: #8392a5 !default;
$dark: #263238 !default;
$dark-light: $gray-600 !default;
$light-gray: $gray-100 !default;

// light colors
$primary-bg-subtle: rgba($primary, 15%) !default;
$secondary-bg-subtle: rgba($secondary, 15%) !default;
$success-bg-subtle: rgba($success, 15%) !default;
$info-bg-subtle: rgba($info, 15%) !default;
$warning-bg-subtle: rgba($warning, 15%) !default;
$danger-bg-subtle: rgba($danger, 15%) !default;
$light-bg-subtle: $gray-100 !default; 
$dark-bg-subtle: $gray-600 !default;