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b1b07540f2
Closes #363
78 lines
2.9 KiB
Plaintext
78 lines
2.9 KiB
Plaintext
---
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title: Colors
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---
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<% impl_status dart: '1.14.0', libsass: '3.6.0', ruby: '3.6.0', feature: 'Level 4 Syntax' do %>
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LibSass and older versions of Dart or Ruby Sass don't support [hex colors with
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an alpha channel][].
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[hex colors with an alpha channel]: https://drafts.csswg.org/css-color/#hex-notation
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<% end %>
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Sass has built-in support for color values. Just like CSS colors, they represent
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points in the [sRGB color space][], although many Sass [color functions][]
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operate in the [HSL color space][] as well. Sass colors can be written as hex
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codes (`#f2ece4` or `#b37399aa`), [CSS color names][] (`midnightblue`,
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`transparent`), or the functions [`rgb()`][], [`rgba()`][], [`hsl()`][], and
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[`hsla()`][].
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[sRGB color space]: https://en.wikipedia.org/wiki/SRGB
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[color functions]: ../modules/color
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[HSL color space]: https://en.wikipedia.org/wiki/HSL_and_HSV
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[CSS color names]: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value#Color_keywords
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[`rgb()`]: ../modules#rgb
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[`rgba()`]: ../modules#rgba
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[`hsl()`]: ../modules#hsl
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[`hsla()`]: ../modules#hsla
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<% example(autogen_css: false) do %>
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@debug #f2ece4; // #f2ece4
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@debug #b37399aa; // rgba(179, 115, 153, 67%)
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@debug midnightblue; // #191970
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@debug rgb(204, 102, 153); // #c69
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@debug rgba(107, 113, 127, 0.8); // rgba(107, 113, 127, 0.8)
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@debug hsl(228, 7%, 86%); // #dadbdf
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@debug hsla(20, 20%, 85%, 0.7); // rgb(225, 215, 210, 0.7)
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===
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@debug #f2ece4 // #f2ece4
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@debug #b37399aa // rgba(179, 115, 153, 67%)
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@debug midnightblue // #191970
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@debug rgb(204, 102, 153) // #c69
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@debug rgba(107, 113, 127, 0.8) // rgba(107, 113, 127, 0.8)
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@debug hsl(228, 7%, 86%) // #dadbdf
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@debug hsla(20, 20%, 85%, 0.7) // rgb(225, 215, 210, 0.7)
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<% end %>
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<% fun_fact do %>
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No matter how a Sass color is originally written, it can be used with both
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HSL-based and RGB-based functions!
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<% end %>
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CSS supports many different formats that can all represent the same color: its
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name, its hex code, and [functional notation][]. Which format Sass chooses to
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compile a color to depends on the color itself, how it was written in the
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original stylesheet, and the current output mode. Because it can vary so much,
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stylesheet authors shouldn't rely on any particular output format for colors
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they write.
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[functional notation]: https://developer.mozilla.org/en-US/docs/Web/CSS/color_value
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Sass supports many useful [color functions][] that can be used to create new
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colors based on existing ones by [mixing colors together][] or [scaling their
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hue, saturation, or lightness][].
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[mixing colors together]: ../modules/color#mix
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[scaling their hue, saturation, or lightness]: ../modules/color#scale
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<% example(autogen_css: false) do %>
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$venus: #998099;
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@debug scale-color($venus, $lightness: +15%); // #a893a8
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@debug mix($venus, midnightblue); // #594d85
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===
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$venus: #998099
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@debug scale-color($venus, $lightness: +15%) // #a893a8
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@debug mix($venus, midnightblue) // #594d85
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<% end %>
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