bluesky-bootstrap-theme/scss/_palette.scss

@use "sass:map";

// BASE PALETTE

$palette: ("blue":#4e63c9, "violet":#ce4dcd, "purple":#7951c0, "red":#e33d22, "orange":#eb790a, "green":#75b82d, "skyblue":#42a0f3, "dark": #2D2D2D, "light":#eeeeec, "turquoise": #46bd9e, "yellow": #f6d32d, "brown":#986a44, "grey":#77767b);

$semantics: ("primary":"purple", "secondary":"blue", "warning":"orange", "danger":"red", "info":"skyblue", "success":"green");

$whiteness_value: 0.8;

// FUNCTIONS TO GET MORE EASILY COLORS

@function get-color($name) {
    @if map-has-key($semantics, $name) {
        @return map.get($palette, map.get($semantics, $name));
    } @else {
        @return map.get($palette, $name);
    }
}

@function list-colors() {
    $newmap: map.merge($palette, $semantics);
    @return $newmap;
}

@function luminance($color) {
    $c_red: red($color);
    $c_grn: green($color);
    $c_blu: blue($color);

    $luminance: $c_red*0.299 + $c_grn*0.587 + $c_blu*0.114;

    @return $luminance
}

@function getTextColorFromBackground($background-color, $light-color, $dark-color) {
    @if (luminance($background-color ) < 255 * $whiteness_value) {
        @return $light-color;
    } @else {
        @return $dark-color;
    }
}

$color-primary: get-color("primary");
$color-secondary: get-color("secondary");
$color-warning: get-color("warning");
$color-danger: get-color("danger");
$color-info: get-color("info");
$color-success: get-color("success");

$color-link: get-color("blue");
$color-selection: get-color("blue");
$color-mark: get-color("yellow");

@mixin text-color($text-color) {
  color: $text-color;
}

@mixin background-color($background-color, $light-color, $dark-color) {
  background-color: $background-color!important;
  color: getTextColorFromBackground($background-color, $light-color, $dark-color);
}

.text {
    @each $name, $color in list-colors() {
        &-#{$name} { @include text-color(get-color($name)); }
    }
}

.bg {
    @each $name, $color in list-colors() {
        &-#{$name} { @include background-color(get-color($name), #FFF, #000); }
    }
}

// Direct uses of colors

a, a:hover, a:active {
  color: $color-link;
}

::selection {
  @include background-color($color-selection, #FFF, #000);
}
::-moz-selection {
  @include background-color($color-selection, #FFF, #000);
}

mark {
  background-color: lighten($color-mark, 30%)
}

blockquote, pre {
  border-color: $color-primary;
}