discourse/app/assets/stylesheets/common/foundation/variables.scss

// --------------------------------------------------
// Variables used throughout the theme
// --------------------------------------------------


// Layout dimensions
// --------------------------------------------------

$small-width: 950px !default;
$medium-width: 995px !default;
$large-width: 1110px !default;

// Primary color variables
// --------------------------------------------------

$black: #333 !default;
$white: #fff !default;

$blue: #00aaff !default;
$yellow: lighten(#FFFF00, 15%) !default;
$red: #e45735 !default;
$pink: #fa6c8d !default;
$green: #009900 !default;

$google: #5b76f7 !default;
$facebook: #3b5998 !default;
$cas: #70BA61 !default;
$twitter: #00bced !default;
$yahoo: #810293 !default;
$github: #6d6d6d !default;

// Base
// --------------------------------------------------

$base-font-size: 14px !default;
$base-line-height: 19px !default;
$base-font-family: "Helvetica Neue", Helvetica, Arial, sans-serif !default;
$base-background-color: lighten($black, 60%) !default;

// Links
// --------------------------------------------------

$link-color: $blue !default;
$link-color-visited: darken($blue, 10%) !default;
$link-color-hover: darken($blue, 10%) !default;
$link-color-active: darken($blue, 10%) !default;

// Badges
// --------------------------------------------------

// Notification badge

$badge-notification-background-color: lighten($black, 35%) !default;

// Posts badge

$badge-posts-color: lighten($black, 35%) !default;

// Buttons
// --------------------------------------------------

// Default button

$btn-default-color: $black !default;
$btn-default-background-color:  lighten($black, 50%) !default;
$btn-default-background-color-hover: lighten($black, 76%) !default;

// Primary button

$btn-primary-border-color: darken($blue, 10%) !default;
$btn-primary-background-color: $blue !default;
$btn-primary-background-color-dark: $blue !default;
$btn-primary-background-color-light: lighten($blue, 30%) !default;

// Danger button (delete, etc)

$btn-danger-border-color: darken($red, 10%) !default;
$btn-danger-background-color: $red !default;
$btn-danger-background-color-dark: darken($red, 10%) !default;
$btn-danger-background-color-light: $red !default;

$btn-success-background: lighten($green, 5%);

// Navigation menus
// --------------------------------------------------

// Pill nav

$nav-pills-color: $black !default;
$nav-pills-color-hover: $red !default;
$nav-pills-border-color-hover: lighten($red, 35%) !default;
$nav-pills-background-color-hover: lighten($red, 35%)  !default;
$nav-pills-color-active: $red !default;
$nav-pills-border-color-active: darken($red, 10%) !default;
$nav-pills-background-color-active: $red !default;

// Stacked nav

$nav-stacked-color: $black !default;
$nav-stacked-border-color: lighten($black, 60%) !default;
$nav-stacked-background-color: lighten($black, 76%)  !default;
$nav-stacked-divider-color: lighten($black, 60%) !default;
$nav-stacked-chevron-color: lighten($black, 50%) !default;
$nav-stacked-border-color-active: $red !default;
$nav-stacked-background-color-active: $red !default;

// Button nav

$nav-button-color: lighten($black, 35%) !default;
$nav-button-color-hover: $black !default;
$nav-button-background-color-hover: lighten($black, 60%) !default;
$nav-button-color-active: $black !default;
$nav-button-background-color-active: lighten($black, 60%) !default;

// Header

$modal-header-color: $red !default;
$modal-header-border-color: lighten($black, 50%) !default;
$modal-close-button-color: lighten($black, 50%);

$nav-like-button-color-hover: $pink !default;
$nav-like-button-background-color-hover: lighten($pink, 22%) !default;
$nav-like-button-color-active: darken($pink, 10%) !default;
$nav-like-button-background-color-active: lighten($pink, 22%) !default;

// Topic list
// --------------------------------------------------

$topic-list-border-color: lighten($black, 50%) !default;
$topic-list-th-color: lighten($black, 35%) !default;
$topic-list-th-border-color: lighten($black, 50%) !default;
$topic-list-th-background-color: lighten($black, 76%) !default;
$topic-list-td-color: lighten($black, 35%) !default;
$topic-list-td-border-color: lighten($black, 60%) !default;
$topic-list-star-color: lighten($black, 60%) !default;
$topic-list-starred-color: $red !default;

$quote-background: lighten($black, 76%);

$topicMenuColor: darken($white, 80%);
$bookmarkColor: $blue;


// Basics
// --------------------------------------------------

$primary_border_color: lighten($black, 70%);
$secondary_border_color: lighten($black, 76%);
$tertiary_border_color: $white;
$highlight_border_color: $yellow;
$emphasis_border_color: $blue;
$warning_border_color: lighten($red, 20%);
$success_border_color: $green;

$primary_text_color: $black;
$secondary_text_color: lighten($black, 40%);
$tertiary_text_color: $white;
$warning_text_color: $red;
$success_text_color: $green;
$emphasis_text_color: $blue;
$highlight_text_color: $yellow;
$like_color: $pink;

$primary_shadow_color: $black;
$secondary_shadow_color: $white;
$warning_shadow_color: lighten($red, 20%);
$success_shadow_color: $green;

$highlight: $yellow;

$link_color:  darken($blue, 10%);
$secondary_link_color: $white;
$muted-link-color: lighten($black, 35%);
$muted-important-link-color: lighten($black, 35%);

$attention_bg: lighten($blue, 50%);
$attention_fg: $blue;

$header-item-highlight: lighten($blue, 45%);

$primary_background_color: $white;
$secondary_background_color: $black;
$tertiary_background_color: lighten($black, 10%);
$moderator_background_color: lighten($yellow, 30%) !default;
$emphasis_background_color: lighten($blue, 45%);
$success_background_color: lighten($green, 50%);
$warning_background_color: lighten($red, 30%);
$highlight_background_color: lighten($yellow, 23%);
$like_background_color: lighten($pink, 25%);

$heatmap-high: lighten($red, 10%);
$heatmap-med: $red;
$heatmap-low: darken($red, 10%);

$coldmap-high: lighten($blue, 10%);
$coldmap-med: $blue;
$coldmap-low: darken($blue, 10%);

//Composer

$composer_background: lighten($black, 70%);