JavaScript Finding background color of page or page view using Javascript

You can use the pure javascript or jquery to achieve what you want. To do what you want you can use this functions

Find by tagname:

function getBackgroundByTagName(tag){
    var color =  $(tag).css('background-color');
    console.log(color);
}

Find by class:

function getBackgroundByClassName(classname){
    var color =  $('.'+classname).css('background-color');
    console.log(color);
}

Find by id 

function getBackgroundById(idofelement){
    var color =  $('.'+idofelement).css('background-color');
    console.log(color);
}

All you need to do is to run any of the functions and it will show the color in console.

Answer:1

Here's a start. This will get the background-colour of the <body> tag, whether it's inline or in an external stylesheet.

function getBackground() {

    var getBody = document.getElementsByTagName("body")[0]
    var prop = window.getComputedStyle(getBody).getPropertyValue("background-color");

    if (prop === "transparent") {
        console.log("No background colour set")
    } else {
        console.log(prop);
    }
}

getBackground();

JSFiddle Demo

Answer:2

In theory you could use a canvas element to draw the web page into it and then examine a particular pixel to see what colour it was:

  1. Get all the DOM elements and draw then to a canvas: Mozilla - Drawing_DOM_objects_into_a_canvas

Using script you'd need to clone the contents of the page in question, and then paste it into a canvas element.

  1. Get the pixel colour: Stack Overflow - get-pixel-color-from-canvas-on-mouseover

You could choose the coordinates with the mouse pointer, or you could simple hard code a specific pixel (in the corner of the page perhaps).

Answer:3

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