颜色rgb转换为16进制(#ffffff)

 hexify(color) {
      var values = color
        .replace(/rgba?\(/, "")
        .replace(/\)/, "")
        .replace(/[\s+]/g, "")
        .split(",");
      var a = parseFloat(values[3] || 1),
        r = Math.floor(a * parseInt(values[0]) + (1 - a) * 255),
        g = Math.floor(a * parseInt(values[1]) + (1 - a) * 255),
        b = Math.floor(a * parseInt(values[2]) + (1 - a) * 255);
      return (
        "#" +
        ("0" + r.toString(16)).slice(-2) +
        ("0" + g.toString(16)).slice(-2) +
        ("0" + b.toString(16)).slice(-2)
      );
    },

运用：
let color = this.hexify(rgb(255.00,108.18,3.82))
console.log(color)