background-color

Background-color CSS digunakan untuk seting warna latar belakang dari element yang di inginkan.

Syntax

/* Keyword values */
background-color: red;
background-color: indigo;

/* Hexadecimal value */
background-color: #bbff00;    /* Fully opaque */
background-color: #11ffee00;  /* Fully transparent */
background-color: #11ffeeff;  /* Fully opaque */

/* RGB value */
background-color: rgb(255, 255, 128);        /* Fully opaque */
background-color: rgba(117, 190, 218, 0.5);  /* 50% transparent */

/* HSL value */
background-color: hsl(50, 33%, 25%);         /* Fully opaque */
background-color: hsla(50, 33%, 25%, 0.75);  /* 75% transparent */

/* Special keyword values */
background-color: currentcolor;
background-color: transparent;

/* Global values */
background-color: inherit;
background-color: initial;
background-color: unset;

Background-color menggunakan hanya satu jenis warna <color> nilai.

Values

<color> (en-US): The uniform color of the background. It is rendered behind any background-image (en-US) that is specified, although the color will still be visible through any transparency in the image.

Formal syntax

<color> (en-US)where 
<color> = <rgb()> | (en-US) <rgba()> | (en-US) <hsl()> | (en-US) <hsla()> | (en-US) <hex-color> | (en-US) <named-color> (en-US) | (en-US) currentcolor | (en-US) <deprecated-system-color> (en-US)
where 
<rgb()> = rgb( <percentage> (en-US){ (en-US)3} (en-US) [ (en-US) / <alpha-value> ] (en-US)? (en-US) ) | (en-US) rgb( <number> (en-US){ (en-US)3} (en-US) [ (en-US) / <alpha-value> ] (en-US)? (en-US) ) | (en-US) rgb( <percentage> (en-US)# (en-US){ (en-US)3} (en-US) , <alpha-value>? (en-US) ) | (en-US) rgb( <number> (en-US)# (en-US){ (en-US)3} (en-US) , <alpha-value>? (en-US) )
<rgba()> = rgba( <percentage> (en-US){ (en-US)3} (en-US) [ (en-US) / <alpha-value> ] (en-US)? (en-US) ) | (en-US) rgba( <number> (en-US){ (en-US)3} (en-US) [ (en-US) / <alpha-value> ] (en-US)? (en-US) ) | (en-US) rgba( <percentage> (en-US)# (en-US){ (en-US)3} (en-US) , <alpha-value>? (en-US) ) | (en-US) rgba( <number> (en-US)# (en-US){ (en-US)3} (en-US) , <alpha-value>? (en-US) )
<hsl()> = hsl( <hue> <percentage> (en-US) <percentage> (en-US) [ (en-US) / <alpha-value> ] (en-US)? (en-US) ) | (en-US) hsl( <hue>, <percentage> (en-US), <percentage> (en-US), <alpha-value>? (en-US) )
<hsla()> = hsla( <hue> <percentage> (en-US) <percentage> (en-US) [ (en-US) / <alpha-value> ] (en-US)? (en-US) ) | (en-US) hsla( <hue>, <percentage> (en-US), <percentage> (en-US), <alpha-value>? (en-US) )
where 
<alpha-value> = <number> (en-US) | (en-US) <percentage> (en-US)
<hue> = <number> (en-US) | (en-US) <angle> (en-US)

Contoh

HTML

<div class="exampleone">
  Lorem ipsum dolor sit amet, consectetuer
</div>

<div class="exampletwo">
  Lorem ipsum dolor sit amet, consectetuer
</div>

<div class="examplethree">
  Lorem ipsum dolor sit amet, consectetuer
</div>

CSS

.exampleone {
  background-color: teal;
  color: white;
}

.exampletwo {
  background-color: rgb(153,102,153);
  color: rgb(255,255,204);
}

.examplethree {
  background-color: #777799;
  color: #FFFFFF;
}

It is important to ensure that the contrast ratio between the background color and the color of the text placed over it is high enough that people experiencing low vision conditions will be able to read the content of the page.

Color contrast ratio is determined by comparing the luminosity of the text and background color values. In order to meet current Web Content Accessibility Guidelines (WCAG), a ratio of 4.5:1 is required for text content and 3:1 for larger text such as headings. Large text is defined as 18.66px and bold or larger, or 24px or larger.

Specifications

Specification	Status	Comment
CSS Backgrounds and Borders Module Level 3 The definition of 'background-color' in that specification.	Candidate Recommendation	Though technically removing the `transparent` keyword, this doesn't change anything as it has been incorporated as a true `<color>` (en-US)
CSS Level 2 (Revision 1) The definition of 'background-color' in that specification.	Recommendation	No change
CSS Level 1 The definition of 'background-color' in that specification.	Recommendation	Initial definition

Initial value (en-US)	`transparent`
Applies to	all elements. It also applies to ::first-letter (en-US) and ::first-line (en-US).
Inherited (en-US)	no
Computed value (en-US)	computed color
Animation type	a color

Browser compatibility

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