在javascript/nodejs中从表中查找最接近的RGB值

function colorDistance(rgb1, rgb2) {
    const [r1, g1, b1] = rgb1;
    const [r2, g2, b2] = rgb2;
    return Math.sqrt(Math.pow(r2 - r1, 2) + Math.pow(g2 - g1, 2) + Math.pow(b2 - b1, 2));
}

function findClosestColor(targetRGB, colorTable) {
    let minDistance = Infinity;
    let closestColor = null;

    for (const color of colorTable) {
        const distance = colorDistance(targetRGB, color);
        if (distance < minDistance) {
            minDistance = distance;
            closestColor = color;
        }
    }

    return closestColor;
}

// 示例使用
const target = [120, 50, 200];
const colorTable = [
    [255, 0, 0],
    [0, 255, 0],
    [0, 0, 255],
    [255, 255, 0],
    [0, 255, 255],
    [255, 0, 255]
];

console.log(findClosestColor(target, colorTable)); // 输出最接近的颜色