Grayscale to Color

annotated.js

function toColor(grayscale) {

	var hexes	= [0, 64, 128, 192, 255],
		answers	= [[]];
	for( var i = 0; i < 5; i++ ) {
	//Cycle through first value
	for( var j = 0; j < 5; j++ ) {
	//Cycle through second value
	for( var k = 0; k < 5; k++ ) {
		//Cycle through third value
		var coeffs	= [hexes[i],hexes[j],hexes[k]],
		color	= .59*hexes[i] + .3*hexes[j] + .11*hexes[k],
		delta	= Math.abs(color-target),
		bool	= delta < 5;
		answers.push( bool ? coeffs : null );
	}					
	}	
	}		
	
	return (function(newA) { 			//Filter array
		for( i in answers )
			answers[i] ? newA[i] = answers[i] : '';
		return newA;
	})([[]]).pop();					//Return first item (Reddest)
}

index.js

function toColor(a){var b=[0,64,128,192,255],c=[[]];for(var d=0;d<5;d++){for(var e=0;e<5;e++){for(var f=0;f<5;f++){var g=[b[d],b[e],b[f]],h=.59*b[d]+.3*b[e]+.11*b[f],i=Math.abs(h-target),j=i<5;c.push(j?g:null)}}}return function(a){for(d in c)c[d]?a[d]=c[d]:"";return a}([[]]).pop()}