The goog.color.alpha Namespace
Gets the alpha color part of an alpha hex color. For example, from
'#abcdef55' return '55'. The result is guaranteed to be two characters long.
colorWithAlpha {string}
- The alpha hex color to get the hex color from.
- returns {
string}
- The hex color where the alpha part has been stripped off.
Gets the hex color part of an alpha hex color. For example, from '#abcdef55'
return '#abcdef'.
colorWithAlpha {string}
- The alpha hex color to get the hex color from.
- returns {
string}
- The hex color where the alpha part has been stripped off.
.hexToRgba(hexColor)
Converts an 8-hex representation of a color to RGBA.
hexColor {string}
- Color to convert.
- returns {
Array}
- array containing [r, g, b] as ints in [0, 255].
.hexToRgbaStyle(hexColor)
Converts a hex representation of a color to RGBA.
hexColor {string}
- Color to convert.
- returns {
string}
- string of the form 'rgba(R,G,B,A)' which can be used in
styles.
.hslaArrayToHex(hsla)
Converts a color from HSLA to hex representation.
hsla {Array.<number>}
- Array of [h, s, l, a], where h is an integer in
[0, 360], s and l are integers in [0, 100], and a is in [0, 1].
- returns {
string}
- hex representation of the color, such as '#af457eff'.
.hslaArrayToRgbaStyle(hsla)
Converts a color from HSLA to an RGBA style string.
hsla {Array.<number>}
- Array of [h, s, l, a], where h is and integer in
[0, 360], s and l are integers in [0, 100], and a is in [0, 1].
- returns {
string}
- An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
.hslaToHex(h, s, l, a)
Converts a color from HSLA to hex representation.
h {number}
- Amount of hue, int between 0 and 360.
s {number}
- Amount of saturation, int between 0 and 100.
l {number}
- Amount of lightness, int between 0 and 100.
a {number}
- Amount of alpha, float between 0 and 1.
- returns {
string}
- hex representation of the color.
.hslaToRgba(h, s, l, a)
Converts a color from HSLA color space to RGBA color space.
h {number}
- Amount of hue, int between 0 and 360.
s {number}
- Amount of saturation, int between 0 and 100.
l {number}
- Amount of lightness, int between 0 and 100.
a {number}
- Amount of alpha, float between 0 and 1.
- returns {
Array.<number>}
- [r, g, b, a] values for the color, where r, g, b
are integers in [0, 255] and a is a float in [0, 1].
.hslaToRgbaStyle(h, s, l, a)
Converts a color from HSLA to an RGBA style string.
h {number}
- Amount of hue, int between 0 and 360.
s {number}
- Amount of saturation, int between 0 and 100.
l {number}
- Amount of lightness, int between 0 and 100.
a {number}
- Amount of alpha, float between 0 and 1.
- returns {
string}
- An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
styles.
.hsvaArrayToHex(hsva)
Converts from an HSVA array to a hex string
hsva {Array}
- Array of [h, s, v, a] in
[[0, 1], [0, 1], [0, 255], [0, 1]].
- returns {
string}
- hex representation of the color.
.hsvaToHex(h, s, v, a)
Converts from h,s,v,a values to a hex string
h {number}
- Hue, in [0, 1].
s {number}
- Saturation, in [0, 1].
v {number}
- Value, in [0, 255].
a {number}
- Alpha, in [0, 1].
- returns {
string}
- hex representation of the color.
.parse(str)
Parses an alpha color out of a string.
str {string}
- Color in some format.
- returns {
Object}
- Contains two properties: 'hex', which is a string containing
a hex representation of the color, as well as 'type', which is a string
containing the type of color format passed in ('hex', 'rgb', 'named').
.rgbaArrayToHex(rgba)
Converts a color from RGBA to hex representation.
rgba {Array.<number>}
- Array of [r, g, b, a], with r, g, b in [0, 255]
and a in [0, 1].
- returns {
string}
- hex representation of the color.
.rgbaArrayToHsla(rgba)
Converts a color from RGBA color space to HSLA color space.
rgba {Array.<number>}
- [r, g, b, a] values for the color, each in
[0, 255].
- returns {
Array.<number>}
- [h, s, l, a] values for the color, with h in
[0, 360] and s, l and a in [0, 1].
.rgbaArrayToRgbaStyle(rgba)
Converts a color from RGBA to an RGBA style string.
rgba {(Array.<number>|Float32Array)}
- Array of [r, g, b, a],
with r, g, b in [0, 255] and a in [0, 1].
- returns {
string}
- An 'rgba(r,g,b,a)' string ready for use in a CSS rule.
.rgbaToHex(r, g, b, a)
Converts a color from RGBA to hex representation.
r {number}
- Amount of red, int between 0 and 255.
g {number}
- Amount of green, int between 0 and 255.
b {number}
- Amount of blue, int between 0 and 255.
a {number}
- Amount of alpha, float between 0 and 1.
- returns {
string}
- hex representation of the color.
.rgbaToHsla(r, g, b, a)
Converts a color from RGBA color space to HSLA color space.
Modified from {@link http://en.wikipedia.org/wiki/HLS_color_space}.
r {number}
- Value of red, in [0, 255].
g {number}
- Value of green, in [0, 255].
b {number}
- Value of blue, in [0, 255].
a {number}
- Value of alpha, in [0, 255].
- returns {
Array.<number>}
- [h, s, l, a] values for the color, with h an int in
[0, 360] and s, l and a in [0, 1].
.rgbaToRgbaStyle(r, g, b, a)
Converts a color from RGBA to an RGBA style string.
r {number}
- Value of red, in [0, 255].
g {number}
- Value of green, in [0, 255].
b {number}
- Value of blue, in [0, 255].
a {number}
- Value of alpha, in [0, 1].
- returns {
string}
- An 'rgba(r,g,b,a)' string ready for use in a CSS rule.