-webkit-box-shadow: 0 6px 8px -4px #b3b1b3;

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No Color Literals

Rule no-color-literals will disallow the use of color literals and basic color functions in any declarations other than variables or maps/lists.

The list of affected color functions are as follows: * rgb * rgba * hsl * hsla

Other color functions, such as adjust-color and mix, may be used, but the original color must be passed in as a variable.

Options

• allow-map-identifiers: true/false (defaults to true)
• allow-rgba: true/false (defaults to false)
• allow-variable-identifiers: true/false (defaults to true)

Examples

When enabled and default options are used the following are disallowed.

.literal {
  color: mediumslateblue;
}

.linear-gradient-func {
  background: linear-gradient(top, #fff, white);
}

.box-shadow {
  box-shadow: 1px 1px black, 1px 1px black;
}

.background {
  background: 1px solid white;
}

.hex {
  color: #fff;
}

// rgb function passed directly as function argument
.adj {
  color: adjust-color(rgb(255, 0, 0), $blue: 5);
}

// hsl function passed directly as function argument
.scale {
  color: scale-color(hsl(120, 70%, 80%), $lightness: 50%);
}

// hsl function passed directly as function argument
.change {
  color: change-color(hsl(25, 100%, 80%), $lightness: 40%, $alpha: .8);
}

// color literal passed directly as function argument
.function {
  color: test(#fff);
}

// color functions used directly as property values
.rgb {
  color: rgb(255, 255, 255);
}

.rgba {
  color: rgba(255, 255, 255, .3);
}

.hsl {
  color: hsl(40, 50%, 50%);
}

.hsla {
  color: hsla(40, 50%, 50%, .3);
}

When enabled and default options are used the following are allowed.

$literal: mediumslateblue;
$hexVar: #fff;
$rgb: rgb(255, 255, 255);
$rgba: rgba(255, 255, 255, .3);
$hsl: hsl(40, 50%, 50%);
$hsla: hsla(40, 50%, 50%, .3);

// using color literals as property names
$colors: (
  red: #fff,
  blue : (
    orange: #fff
  )
);

// using color literals as variable identifiers
$black: #000;

.literal {
  color: $literal;
}

.linear-gradient-func {
  background: linear-gradient(top, $hexVar, $literal);
}

.background {
  background: 1px solid $literal;
}

.hex {
  color: $hexVar;
}

.adj {
  color: adjust-color($off-red, $blue: 5);
}

.scale {
  color: scale-color($off-blue, $lightness: 50%);
}

.change {
  color: change-color($orange-extra, $lightness: 40%, $alpha: .8);
}

.function {
  color: test($hexVar);
}

.rgb {
  color: $rgb;
}

.rgba {
  color: $rgba;
}

.hsl {
  color: $hsl;
}

.hsla {
  color: $hsla;
}

---

[allow-rgba: true]

When enabled and allow-rgba is set to true, the following will be allowed:

// rgba in variables is still fine
$rgba: rgba(255, 0, 0, .5);
$red: rgb(255, 255, 255,);

// rgba can be used directly to alter a variables opacity
.color {
  color: rgba($red, .3);
}

In addition, when enabled and allow-rgba is set to true, the following will be disallowed:

.color {
  // you must use variables and not literals
  color: rgba(0, 0, 0, .3);
  color: rgba(black, .3);
}

---

[allow-variable-identifiers: false]

When enabled and allow-variable-identifiers is set to false, the following will be disallowed

// variable uses a color literal as an identifier
$black: #000

// variable using a color literal as an identifier is passed to a function
.test {
  color: adjust-color($off-red, $blue: 5)
}

When enabled and allow-variable-identifiers is set to false, the following will be allowed

// variable not directly using a color literal as an identifier
$primary-black: #000

---

[allow-map-identifiers: false]

When enabled and allow-map-identifiers is set to false, the following will be disallowed

// map identifiers red, blue and orange share their name with a
// color literal and therefore shouldn't be used
$colors: (
  red: #f00,
  blue: (
    orange: $orange
  )
)

When enabled and allow-map-identifiers is set to false, the following will be allowed

$colors: (
  primary-red: #f00,
  map-blue: (
    off-orange: $orange
  )
)

          display: flex;

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Property Sort Order

Rule property-sort-order will enforce the order in which declarations are written.

Options

• order: 'alphabetical', 'concentric', 'recess', 'smacss', or [array of properties] (defaults to alphabetical. Unknown properties are sorted alphabetically)
• ignore-custom-properties: true/false (defaults to false)

Property orders: https://github.com/sasstools/sass-lint/tree/develop/lib/config/property-sort-orders

Examples

When enabled (assuming order: alphabetical), the following are allowed:

.foo {
  content: 'baz';
  height: 100vh;
  width: 100vw;
}

When enabled (assuming order: alphabetical), the following are disallowed:

.foo {
  width: 100vw;
  height: 100vh;
  content: 'baz';
}

Custom Sort Orders

You have the option to create your own custom property sort orders. These are specified in your .sass-lint.yml file as below:

property-sort-order:
  - 1
  -
    order:
      - border
      - display
      - color

When the custom order is specified as above, the following are allowed:

.foo {
  border: 1px solid blue;
  display: block;
  color: red;
}

When the custom order is specified as above, the following are disallowed:

.foo {
  display: block;
  color: red;
  border: 1px solid blue;
}

Ignore Custom Properties

When ignore-custom-properties: false (assume order: 'alphabetical') the following would be allowed

.foo {
  border: 1px solid blue;
  color: red;
  composes: heading;
  display: block;
}

When ignore-custom-properties: false (assume order: 'alphabetical') the following would be disallowed

.foo {
  composes: heading; // not in alphabetical order
  border: 1px solid blue;
  color: red;
  display: block;
}

When ignore-custom-properties: true (assume order: 'alphabetical') the following would be allowed

.foo {
  composes: heading; // custom properties ignored
  border: 1px solid blue;
  color: red;
  display: block;
}

  background-color: lightcoral !important;

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Color Keyword

Rule no-color-keywords will enforce the use of hexadecimal color values rather than literals.

Examples

When enabled the following are allowed:

$new-red: #ff0000;

.foo {
  color: #ff0000;
}

When enabled the following are disallowed:

$new-red: red;

.foo {
  color: red;
}