JSFiddle - React, Tailwind, and code Playground

JavaScript

document.write("<table width='80%'> ");
    var r = new Array("00","33","66","99","CC","FF"); 
    var g = new Array("00","33","66","99","CC","FF"); 
    var b = new Array("00","33","66","99","CC","FF"); 
    
    for (i=0;i<r.length;i++) for (j=0;j<g.length;j++)
    { 
        document.write("<tr>"); 
        for (k=0;k<b.length;k++)
        { 
            var novoc = "#" + r[i] + g[j] + b[k]; 
            var pawn = "0x" + r[i] + g[j] + b[k] + "AA"; 
            document.write("<td bgcolor=\"" + novoc + "\" align=center>"); 
            document.write("<font SIZE=2>" + pawn + "</font>"); 
            document.write("</td>"); 
        }
        document.write("</tr>");        
    }
document.write("</table>");