crispy-css/scss/components/_textColors.scss

/**
 * classes as modificators for text-color
 *
 *
 * @author Björn Hase
 *
 */

$text-colors: (
    'success': $base-color-success,
    'warning': $base-color-warning,
    'danger': $base-color-danger,
    'white': white,
    'black': black
) !default;

@mixin crispy-boilerplate-text-colors() {
     @each $name, $color in $text-colors {
        .--text-#{$name} {
            color: $color;
        }
    }
}