File: public/asset/vendor/select2/docs/themes/learn2/scss/vendor/color-schemer/color-schemer/_color-adjustments.scss

// RGB functions
@function set-red($color, $red) {
  @return rgba($red, green($color), blue($color), alpha($color));
}

@function set-green($color, $green) {
  @return rgba(red($color), $green, blue($color), alpha($color));
}

@function set-blue($color, $blue) {
  @return rgba(red($color), green($color), $blue, alpha($color));
}


// HSL Functions
@function set-hue($color, $hue) {
  @return hsla($hue, saturation($color), lightness($color), alpha($color));
}

@function set-saturation($color, $saturation) {
  @return hsla(hue($color), $saturation, lightness($color), alpha($color));
}

@function set-lightness($color, $lightness) {
  @return hsla(hue($color), saturation($color), $lightness, alpha($color));
}

@function set-alpha($color, $alpha) {
  @return hsla(hue($color), saturation($color), lightness($color), $alpha);
}