FFFFFF

DHTML Color Picker

DHTML Color Picker
Free to use on your own projects!

Our DHTML Color Picker is full featured, and easy to use. However, it still uses the least amount of code in comparison with it’s competitors: 3.5k of Javascript. The entire package is 24k including the required images. Oh, btw, it’s free!

Have an idea for this plugin? Download the source files; it’s dual licenced under Creative Commons & GPL, so feel free to use/modify the DHTML Color Picker on your own project.

JAVASCRIPT

/* DHTML Color Picker : v1.0.4 : 2008/05/08 */
/* http://www.colorjack.com/software/dhtml+color+picker.html */

function $(v,o) { return((typeof(o)=='object'?o:document).getElementById(v)); }
function $S(o) { o=$(o); if(o) return(o.style); }
function abPos(o) { var o=(typeof(o)=='object'?o:$(o)), z={X:0,Y:0}; while(o!=null) { z.X+=o.offsetLeft; z.Y+=o.offsetTop; o=o.offsetParent; }; return(z); }
function agent(v) { return(Math.max(navigator.userAgent.toLowerCase().indexOf(v),0)); }
function toggle(v) { $S(v).display=($S(v).display=='none'?'block':'none'); }
function within(v,a,z) { return((v>=a && v<=z)?true:false); }
function XY(e,v) { var o=agent('msie')?{'X':event.clientX+document.documentElement.scrollLeft,'Y':event.clientY+document.documentElement.scrollTop}:{'X':e.pageX,'Y':e.pageY}; return(v?o[v]:o); }
function zero(v) { v=parseInt(v); return(!isNaN(v)?v:0); }


/* COLOR PICKER */

var maxValue={'H':360,'S':100,'V':100}, HSV={H:360, S:100, V:100};

var slideHSV={H:360, S:100, V:100}, zINDEX=15, stop=1;

function HSVslide(d,o,e) {

	function tXY(e) { tY=XY(e).Y-ab.Y; tX=XY(e).X-ab.X; }
	function mkHSV(a,b,c) { return(Math.min(a,Math.max(0,Math.ceil((parseInt(c)/b)*a)))); }
	function ckHSV(a,b) { if(within(a,0,b)) return(a); else if(a>b) return(b); else if(a<0) return('-'+oo); }
	function drag(e) { if(!stop) { if(d!='drag') tXY(e);
	
		if(d=='SVslide') { ds.left=ckHSV(tX-oo,162)+'px'; ds.top=ckHSV(tY-oo,162)+'px';

			slideHSV.S=mkHSV(100,162,ds.left); slideHSV.V=100-mkHSV(100,162,ds.top); HSVupdate();

		}
		else if(d=='Hslide') { var ck=ckHSV(tY-oo,163), r=['H','S','V'], z={};
		
			ds.top=(ck-5)+'px'; slideHSV.H=mkHSV(360,163,ck);

			for(var i in r) { i=r[i]; z[i]=(i=='H')?maxValue[i]-mkHSV(maxValue[i],163,ck):HSV[i]; }

			HSVupdate(z); $S('SV').backgroundColor='#'+color.HSV_HEX({H:HSV.H, S:100, V:100});

		}
		else if(d=='drag') { ds.left=XY(e).X+oX-eX+'px'; ds.top=XY(e).Y+oY-eY+'px'; }

	}}

	if(stop) { stop=''; var ds=$S(d!='drag'?d:o);

		if(d=='drag') { var oX=parseInt(ds.left), oY=parseInt(ds.top), eX=XY(e).X, eY=XY(e).Y; $S(o).zIndex=zINDEX++; }

		else { var ab=abPos($(o)), tX, tY, oo=(d=='Hslide')?2:4; ab.X+=10; ab.Y+=22; if(d=='SVslide') slideHSV.H=HSV.H; }

		document.onmousemove=drag; document.onmouseup=function(){ stop=1; document.onmousemove=''; document.onmouseup=''; }; drag(e);

	}
};

function HSVupdate(v) { v=color.HSV_HEX(HSV=v?v:slideHSV);

	$('plugHEX').innerHTML=v;
	$S('plugCUR').background='#'+v;
	$S('plugID').background='#'+v;
	
	return(v);

};

function loadSV() { var z='';

	for(var i=165; i>=0; i--) { z+="<div style=\"BACKGROUND: #"+color.HSV_HEX({H:Math.round((360/165)*i), S:100, V:100})+";\"><br /><\/div>"; }

	$('Hmodel').innerHTML=z;
	
};


/* COLOR LIBRARY */

color={};

color.cords=function(W) {

	var W2=W/2, rad=(hsv.H/360)*(Math.PI*2), hyp=(hsv.S+(100-hsv.V))/100*(W2/2);

	$S('mCur').left=Math.round(Math.abs(Math.round(Math.sin(rad)*hyp)+W2+3))+'px';
	$S('mCur').top=Math.round(Math.abs(Math.round(Math.cos(rad)*hyp)-W2-21))+'px';

};

color.HEX=function(o) { o=Math.round(Math.min(Math.max(0,o),255));

    return("0123456789ABCDEF".charAt((o-o%16)/16)+"0123456789ABCDEF".charAt(o%16));

};

color.RGB_HEX=function(o) { var fu=color.HEX; return(fu(o.R)+fu(o.G)+fu(o.B)); };

color.HSV_RGB=function(o) {
    
    var R, G, A, B, C, S=o.S/100, V=o.V/100, H=o.H/360;

    if(S>0) { if(H>=1) H=0;

        H=6*H; F=H-Math.floor(H);
        A=Math.round(255*V*(1-S));
        B=Math.round(255*V*(1-(S*F)));
        C=Math.round(255*V*(1-(S*(1-F))));
        V=Math.round(255*V); 

        switch(Math.floor(H)) {

            case 0: R=V; G=C; B=A; break;
            case 1: R=B; G=V; B=A; break;
            case 2: R=A; G=V; B=C; break;
            case 3: R=A; G=B; B=V; break;
            case 4: R=C; G=A; B=V; break;
            case 5: R=V; G=A; B=B; break;

        }

        return({'R':R?R:0, 'G':G?G:0, 'B':B?B:0, 'A':1});

    }
    else return({'R':(V=Math.round(V*255)), 'G':V, 'B':V, 'A':1});

};

color.HSV_HEX=function(o) { return(color.RGB_HEX(color.HSV_RGB(o))); }

HTML

<div id="plugin" onmousedown="HSVslide('drag','plugin',event)">
 <div id="plugCUR"></div><div id="plugHEX" onmousedown="stop=0; setTimeout('stop=1',100);">FFFFFF</div><div id="plugCLOSE" onmousedown="toggle('plugin')">X</div><br>
 <div id="SV" onmousedown="HSVslide('SVslide','plugin',event)" title="Saturation + Value">
  <div id="SVslide" style="TOP: -4px; LEFT: -4px;"><br /></div>
 </div>
 <form id="H" onmousedown="HSVslide('Hslide','plugin',event)" title="Hue">
  <div id="Hslide" style="TOP: -7px; LEFT: -8px;"><br /></div>
  <div id="Hmodel"></div>
 </form>
</div>
<div id="T"></div>

CSS

#plugin { BACKGROUND: #0d0d0d; COLOR: #AAA; CURSOR: move; FONT-FAMILY: arial; FONT-SIZE: 11px; PADDING: 7px 10px 11px 10px; _PADDING-RIGHT: 0; Z-INDEX: 1; POSITION: absolute; WIDTH: 199px; _width: 210px; _padding-right: 0px; }
#plugin br { CLEAR: both; MARGIN: 0; PADDING: 0;  }
#plugin select { BORDER: 1px solid #333; BACKGROUND: #FFF; POSITION: relative; TOP: 4px; }

#plugHEX { FLOAT: left; position: relative; top: -1px; }
#plugCLOSE { FLOAT: right; cursor: pointer; MARGIN: 0 8px 3px; _MARGIN-RIGHT: 10px; COLOR: #FFF; -moz-user-select: none; -khtml-user-select: none; user-select: none; }
#plugHEX:hover,#plugCLOSE:hover { COLOR: #FFD000;  }

#plugCUR { float: left; width: 10px; height: 10px; font-size: 1px; background: #FFF; margin-right: 3px; }

#SV { background: #FF0000 url('http://www.colorjack.com/software/media/SatVal.png'); _BACKGROUND: #FF0000; POSITION: relative; CURSOR: crosshair; FLOAT: left; HEIGHT: 166px; WIDTH: 167px; _WIDTH: 166px; MARGIN-RIGHT: 10px; filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='media/SatVal.png', sizingMethod='scale'); -moz-user-select: none; -khtml-user-select: none; user-select: none; }
#SVslide { BACKGROUND: url('http://www.colorjack.com/software/media/slide.gif'); HEIGHT: 9px; WIDTH: 9px; POSITION: absolute; _font-size: 1px; line-height: 1px; }

#H { BORDER: 1px solid #000; CURSOR: crosshair; FLOAT: left; HEIGHT: 154px; POSITION: relative; WIDTH: 19px; PADDING: 0; TOP: 4px; -moz-user-select: none; -khtml-user-select: none; user-select: none; }
#Hslide { BACKGROUND: url('http://www.colorjack.com/software/media/slideHue.gif'); HEIGHT: 5px; WIDTH: 33px; POSITION: absolute; _font-size: 1px; line-height: 1px; }
#Hmodel { POSITION: relative; TOP: -5px; }
#Hmodel div { HEIGHT: 1px; WIDTH: 19px; font-size: 1px; line-height: 1px; MARGIN: 0; PADDING: 0; }

Open Source:

DHTML Color Sphere, DHTML Color Picker, Color Blindness, Color Conversions and Color Matrix