javascripthtmlcanvascolorsrgb

how to get rgb values for a color that's close to another color?

If I have a color in RGB. How can I create a javascript function that returns true when another RGB value is close to the initial RGB and false otherwise?

Solution

  • I've used this and it works very well for me:

    // assuming that color1 and color2 are objects with r, g and b properties
// and tolerance is the "distance" of colors in range 0-255
function isNeighborColor(color1, color2, tolerance) {
    if(tolerance == undefined) {
        tolerance = 32;
    }

    return Math.abs(color1.r - color2.r) <= tolerance
        && Math.abs(color1.g - color2.g) <= tolerance
        && Math.abs(color1.b - color2.b) <= tolerance;
}

    and depending on your particular problem the meaning of the color distance can be different, for example maybe in your case you would need to change && to ||