The CanvasRenderingContext2D
.shadowColor
property of the Canvas 2D API specifies the color of the shadow.
Syntax
ctx.shadowColor = color;
Examples
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.
HTML
<canvas id="canvas"></canvas>
JavaScript
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:
Playable code
<canvas id="canvas" width="400" height="200" class="playable-canvas"></canvas> <div class="playable-buttons"> <input id="edit" type="button" value="Edit" /> <input id="reset" type="button" value="Reset" /> </div> <textarea id="code" class="playable-code"> ctx.shadowColor = 'black'; ctx.shadowOffsetY = 10; ctx.shadowOffsetX = 10; ctx.fillStyle = 'green' ctx.fillRect(10, 10, 100, 100);</textarea>
var canvas = document.getElementById('canvas'); var ctx = canvas.getContext('2d'); var textarea = document.getElementById('code'); var reset = document.getElementById('reset'); var edit = document.getElementById('edit'); var code = textarea.value; function drawCanvas() { ctx.clearRect(0, 0, canvas.width, canvas.height); eval(textarea.value); } reset.addEventListener('click', function() { textarea.value = code; drawCanvas(); }); edit.addEventListener('click', function() { textarea.focus(); }) textarea.addEventListener('input', drawCanvas); window.addEventListener('load', drawCanvas);
Specifications
Specification | Status | Comment |
---|---|---|
WHATWG HTML Living Standard The definition of 'CanvasRenderingContext2D.shadowColor' in that specification. |
Living Standard |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
Feature | Android | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
WebKit/Blink-specific notes
- 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
- The interface defining it,
CanvasRenderingContext2D
.