From color-js/color.js#89
let goldenrod = new Color("goldenrod");
let cornflowerblue = new Color("cornflowerblue");
let royalblue = new Color("royalblue");
let slateblue = new Color("slateblue");
let peru = new Color("peru");
let khaki = new Color("khaki");
let darkorange = new Color("darkorange");
goldenrod.deltaEJz(cornflowerblue);
goldenrod.deltaEJz(royalblue);
goldenrod.deltaEJz(slateblue);
goldenrod.deltaEJz(peru);
goldenrod.deltaEJz(khaki);
goldenrod.deltaEJz(darkorange);
goldenrod.deltaE76(cornflowerblue);
goldenrod.deltaE76(royalblue);
goldenrod.deltaE76(slateblue);
goldenrod.deltaE76(peru);
goldenrod.deltaE76(khaki);
goldenrod.deltaE76(darkorange);
goldenrod.deltaE2000(cornflowerblue);
goldenrod.deltaE2000(royalblue);
goldenrod.deltaE2000(slateblue);
goldenrod.deltaE2000(peru);
goldenrod.deltaE2000(khaki);
goldenrod.deltaE2000(darkorange);
goldenrod.deltaECMC(cornflowerblue);
goldenrod.deltaECMC(royalblue);
goldenrod.deltaECMC(slateblue);
goldenrod.deltaECMC(peru);
goldenrod.deltaECMC(khaki);
goldenrod.deltaECMC(darkorange);
goldenrod.deltaEITP(cornflowerblue);
goldenrod.deltaEITP(royalblue);
goldenrod.deltaEITP(slateblue);
goldenrod.deltaEITP(peru);
goldenrod.deltaEITP(khaki);
goldenrod.deltaEITP(darkorange);