namecolors.js

var basePalette = [
    { "r": 107, "g": 50,  "b": 124 },
    { "r": 218, "g": 133, "b": 65  },
    { "r": 245, "g": 205, "b": 48  },
    { "r": 232, "g": 186, "b": 200 },
    { "r": 215, "g": 197, "b": 154 }
]

var modernPalette = [
    { "r": 253, "g": 41,  "b": 67  },
    { "r": 1,   "g": 162, "b": 255 },
    { "r": 2,   "g": 184, "b": 87  },
    ... basePalette
]

var oldPalette = [
    { "r": 196, "g": 40,  "b": 28  },
    { "r": 13,  "g": 105, "b": 172 },
    { "r": 39,  "g": 70,  "b": 45  },
    ... basePalette
]

function mod(a, b) { 
    return (a - Math.floor(a / b) * b)
}

function computeNameColor(name, modernColors = true) {
    let palette = (modernColors ? modernPalette : oldPalette)

    let val = 0
    for (let i = 0; i < name.length; i++) {
        let cv = name.charCodeAt(i)
        let ri = name.length - i

        if (mod(name.length, 2) == 1) {
            ri--
        }

        if (mod(ri, 4) >= 2) {
            cv = -cv
        }

        val += cv
    }

    return palette[mod(val, palette.length)]
}