How to batch generate hundreds of color swatches?

I think this should get you close… There are other ways too…

Contains NO error trapping… Files are saved in folder Swatches on your desktop…

#target photoshop
selectCSV();
function selectCSV() {
    if ( /Macintosh/i.test( $.os ) ) {     
        var csvFile = File.openDialog( 'Select a CSV File', function (f) { return ( f instanceof Folder ) || f.name.match( /\.csv$/i );} );
    } else {
        var csvFile = File.openDialog( 'Select a CSV File', 'comma-separated-values(*.csv):*.csv;' );
    };
    if ( csvFile != null ) { var fileArray = readInCSV( csvFile ) };
    var swatches = Folder( Folder.desktop + '/Swatches' );
    if ( ! swatches.exists ) { swatches.create(); }
    createSwatches( fileArray, swatches )
};
function createSwatches( fileArray, saveFolder ) {
    var userUnits = app.preferences.rulerUnits;
    app.preferences.rulerUnits = Units.PIXELS;
    var doc = app.documents.add( 100, 100, 72, 'fluff', NewDocumentMode.LAB, DocumentFill.TRANSPARENT );
    var opts = new TiffSaveOptions();
    opts.byteOrder = ByteOrder.MACOS;
    opts.imageCompression = TIFFEncoding.TIFFLZW;
    opts.layers = false;
    doc.selection.selectAll();
    for ( var i = 0; i < fileArray.length; i++ ) {      
        var n = fileArray[0];     
        var l = parseInt( fileArray[1] );      
        var a = parseInt( fileArray[2] );            
        var b = parseInt( fileArray[3] );            
        if ( l >= 0 && l <= 100 && a >= -128 && a <= 127 && b >= -128 && b <= 127 ) {
            var lab = new LabColor();
            lab.l = l, lab.a = a, lab.b = b;
            doc.selection.fill( lab, ColorBlendMode.NORMAL, 100, false );
            var saveFile = File( saveFolder.fsName + '/' + n );
            doc.saveAs( saveFile, opts, false, Extension.LOWERCASE );      
        } else {     
            //writelog()     
        };
    };
    doc.close( SaveOptions.DONOTSAVECHANGES );
    app.preferences.rulerUnits = userUnits;
};
function readInCSV( fileObj ) {
    var fileArray = new Array();
    fileObj.open( 'r' );
    //fileObj.seek( 0, 0 );
    while( ! fileObj.eof ) {
        var thisLine = fileObj.readln();
        var csvArray = thisLine.split( ',' );
        fileArray.push( csvArray );
    };
    fileObj.close();
    return fileArray;
};