00a76ed2a1fb4bce5ded514c23fa79ad2c7b274c
2 * jQuery Color Utilities
3 * Written by Krinkle in 2011
4 * Released under the MIT and GPL licenses.
5 * Mostly based on other plugins and functions (taken through JSLint and optimized a little).
6 * Sources cited locally.
10 // Color Conversion function from highlightFade
11 // By Blair Mitchelmore
12 // http://jquery.offput.ca/highlightFade/
13 // Parse strings looking for color tuples [255,255,255]
14 getRGB : function( color
) {
17 // Check if we're already dealing with an array of colors
18 if ( color
&& color
.constructor == Array
&& color
.length
== 3 ){
22 // Look for rgb(num,num,num)
23 if (result
= /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(color
)) {
24 return [parseInt(result
[1],10), parseInt(result
[2],10), parseInt(result
[3],10)];
27 // Look for rgb(num%,num%,num%)
28 if (result
= /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(color
)) {
29 return [parseFloat(result
[1],10)*2.55, parseFloat(result
[2],10)*2.55, parseFloat(result
[3])*2.55];
33 if (result
= /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(color
)) {
34 return [parseInt(result
[1],16), parseInt(result
[2],16), parseInt(result
[3],16)];
38 if (result
= /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(color
)) {
39 return [parseInt(result
[1]+result
[1],16), parseInt(result
[2]+result
[2],16), parseInt(result
[3]+result
[3],16)];
42 // Look for rgba(0, 0, 0, 0) == transparent in Safari 3
43 if (result
= /rgba\(0, 0, 0, 0\)/.exec(color
)) {
44 return $.colorUtil
.colors
.transparent
;
47 // Otherwise, we're most likely dealing with a named color
48 return $.colorUtil
.colors
[jQuery
.trim(color
).toLowerCase()];
51 // Some named colors to work with
52 // From Interface by Stefan Petre
53 // http://interface.eyecon.ro/
64 darkgrey
:[169,169,169],
66 darkkhaki
:[189,183,107],
67 darkmagenta
:[139,0,139],
68 darkolivegreen
:[85,107,47],
69 darkorange
:[255,140,0],
70 darkorchid
:[153,50,204],
72 darksalmon
:[233,150,122],
73 darkviolet
:[148,0,211],
79 lightblue
:[173,216,230],
80 lightcyan
:[224,255,255],
81 lightgreen
:[144,238,144],
82 lightgrey
:[211,211,211],
83 lightpink
:[255,182,193],
84 lightyellow
:[255,255,224],
98 transparent
: [255,255,255]
101 * http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript
102 * Converts an RGB color value to HSL. Conversion formula
103 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
104 * Assumes r, g, and b are contained in the set [0, 255] and
105 * returns h, s, and l in the set [0, 1].
107 * @param Number R The red color value
108 * @param Number G The green color value
109 * @param Number B The blue color value
110 * @return Array The HSL representation
112 rgbToHsl: function( R
, G
, B
) {
116 var max
= Math
.max(r
, g
, b
), min
= Math
.min(r
, g
, b
);
117 var h
, s
, l
= (max
+ min
) / 2;
120 h
= s
= 0; // achromatic
123 s
= l
> 0.5 ? d
/ (2 - max
- min
) : d
/ (max
+ min
);
125 case r
: h
= (g
- b
) / d
+ (g
< b
? 6 : 0); break;
126 case g
: h
= (b
- r
) / d
+ 2; break;
127 case b
: h
= (r
- g
) / d
+ 4; break;
135 * http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript
136 * Converts an HSL color value to RGB. Conversion formula
137 * adapted from http://en.wikipedia.org/wiki/HSL_color_space.
138 * Assumes h, s, and l are contained in the set [0, 1] and
139 * returns r, g, and b in the set [0, 255].
141 * @param Number h The hue
142 * @param Number s The saturation
143 * @param Number l The lightness
144 * @return Array The RGB representation
146 hslToRgb: function( h
, s
, l
) {
150 r
= g
= b
= l
; // achromatic
152 var hue2rgb = function(p
, q
, t
){
155 if(t
< 1/6){ return p
+ (q
- p
) * 6 * t
; }
156 if(t
< 1/2){ return q
; }
157 if(t
< 2/3){ return p + (q - p) * (2/3 - t
) * 6; }
161 var q
= l
< 0.5 ? l
* (1 + s
) : l
+ s
- l
* s
;
163 r
= hue2rgb(p
, q
, h
+ 1/3);
164 g
= hue2rgb(p
, q
, h
);
165 b
= hue2rgb(p
, q
, h
- 1/3);
168 return [r
* 255, g
* 255, b
* 255];
171 * Get's a brighter or darker rgb() value string.
175 * @example getCSSColorMod( 'red', +0.1 )
176 * @example getCSSColorMod( 'rgb(200,50,50)', -0.2 )
178 * @param Mixed currentColor current value in css
179 * @param Number mod wanted brightness modification between -1 and 1
180 * @return String 'rgb(r,g,b)'
182 getColorBrightness: function( currentColor
, mod
) {
183 var rgbArr
= $.colorUtil
.getRGB( currentColor
),
184 hslArr
= $.colorUtil
.rgbToHsl(rgbArr
[0], rgbArr
[1], rgbArr
[2] );
185 rgbArr
= $.colorUtil
.hslToRgb(hslArr
[0], hslArr
[1], hslArr
[2]+mod
);
187 [parseInt( rgbArr
[0], 10), parseInt( rgbArr
[1], 10 ), parseInt( rgbArr
[2], 10 )].join( ',' ) +