Color palette randomizer

colors.js

$(function () {
    // http://www.colourlovers.com/palettes/most-loved/all-time/meta
    let colorPalettes = [
        ['#69D2E7', '#A7DBD8', '#E0E4CC', '#F38630', '#FA6900'],
        ['#FE4365', '#FC9D9A', '#F9CDAD', '#C8C8A9', '#83AF9B'],
        ['#ECD078', '#D95B43', '#C02942', '#542437', '#53777A'],
        ['#CFF09E', '#A8DBA8', '#79BD9A', '#3B8686', '#0B486B'],
        ['#556270', '#4ECDC4', '#C7F464', '#FF6B6B', '#C44D58'],
        ['#774F38', '#E08E79', '#F1D4AF', '#ECE5CE', '#C5E0DC'],
        ['#E8DDCB', '#CDB380', '#036564', '#033649', '#031634'],
        ['#D1F2A5', '#EFFAB4', '#FFC48C', '#FF9F80', '#F56991'],
        ['#490A3D', '#BD1550', '#E97F02', '#F8CA00', '#8A9B0F'],
        ['#594F4F', '#547980', '#45ADA8', '#9DE0AD', '#E5FCC2'],
        ['#00A0B0', '#6A4A3C', '#CC333F', '#EB6841', '#EDC951'],
        ['#E94E77', '#D68189', '#C6A49A', '#C6E5D9', '#F4EAD5'],
        ['#3FB8AF', '#7FC7AF', '#DAD8A7', '#FF9E9D', '#FF3D7F'],
        ['#D9CEB2', '#948C75', '#D5DED9', '#7A6A53', '#99B2B7']
    ];

    function randomColorPalette() {
        let palette = colorPalettes[randomNumber(0, colorPalettes.length - 1)],
            bgColorIndex = randomNumber(0, 4),
            textColorIndex = randomNumber(0, 4),
            headerColorIndex = randomNumber(0, 4),
            linkColorIndex = randomNumber(0, 4);

        while (textColorIndex == bgColorIndex) {
            textColorIndex = randomNumber(0, 4);
        }

        while (headerColorIndex == bgColorIndex
                || headerColorIndex == textColorIndex) {
            headerColorIndex = randomNumber(0, 4);
        }

        while (linkColorIndex == bgColorIndex
                || linkColorIndex == textColorIndex
                || linkColorIndex == headerColorIndex) {
            linkColorIndex = randomNumber(0, 4);
        }

        return {
            bgColor: palette[bgColorIndex],
            textColor: palette[textColorIndex],
            headerColor: palette[headerColorIndex],
            linkColor: palette[linkColorIndex]
        };
    }

    function randomNumber(min, max) {
        return Math.floor(Math.random() * (max - min + 1)) + min;
    }

    function setColorPalette(palette) {
        console.log(palette);

        $('body').css({
            backgroundColor: palette.bgColor,
            color: palette.textColor
        });

        $('h2').css('color', palette.headerColor);
        $('a').css('color', palette.linkColor);
    }

    setColorPalette(randomColorPalette());
});