The CanvasRenderingContext2D.shadowColor property of the Canvas 2D API specifies the color of the shadow.


ctx.shadowColor = color;
A DOMString parsed as CSS <color> value. The default value is fully-transparent black.


Using the shadowColor property

This is just a simple code snippet using the shadowColor property to set a shadow color. Note that shadows are only drawn, if the shadowColor property is set (non-transparent) and either the shadowBlur, the shadowOffsetX, or the shadowOffsetY property are non-zero.


<canvas id="canvas"></canvas>


var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");

ctx.shadowColor = "black";
ctx.shadowOffsetY = 10;
ctx.shadowOffsetX = 10;

ctx.fillStyle = "green"
ctx.fillRect(10, 10, 100, 100);

Edit the code below and see your changes update live in the canvas:


Specification Status Comment
WHATWG HTML Living Standard
The definition of 'CanvasRenderingContext2D.shadowColor' in that specification.
Living Standard  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) (Yes) (Yes) (Yes)
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support (Yes) (Yes) (Yes) (Yes) (Yes) (Yes)
  • In WebKit- and Blink-based browsers, a non-standard and deprecated method ctx.setShadow() is implemented besides this property.
    setShadow(width, height, blur, color, alpha);
    setShadow(width, height, blur, graylevel, alpha);
    setShadow(width, height, blur, r, g, b, a);
    setShadow(width, height, blur, c, m, y, k, a);

See also


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