CanvasGradient.addColorStop()

The CanvasGradient.addColorStop() method adds a new color stop, defined by an offset and a color, to a given canvas gradient.

Syntax

void gradient.addColorStop(offset, color);

Parameters

offset
A number between 0 and 1, inclusive, representing the position of the color stop. 0 represents the start of the gradient and 1 represents the end; an INDEX_SIZE_ERR is raised if the number is outside that range.
color
A CSS <color> value representing the color of the stop. A SYNTAX_ERR is raised if the value cannot be parsed as a CSS <color> value.

Examples

Adding stops to a gradient

This example uses the addColorStop method to add stops to a linear CanvasGradient object. The gradient is then used to fill a rectangle.

HTML

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

JavaScript

const canvas = document.getElementById('canvas');
const ctx = canvas.getContext('2d');

let gradient = ctx.createLinearGradient(0, 0, 200, 0);
gradient.addColorStop(0, 'green');
gradient.addColorStop(.7, 'white');
gradient.addColorStop(1, 'pink');
ctx.fillStyle = gradient;
ctx.fillRect(10, 10, 200, 100);

Result

Specifications

Specification Status Comment
HTML Living Standard
The definition of 'CanvasGradient.addColorStop' in that specification.
Living Standard  

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
addColorStopChrome Full support 6Edge Full support 12Firefox Full support 3.6IE Full support 9Opera Full support 9Safari Full support 5.1WebView Android Full support ≤37Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 10.1Safari iOS Full support 6Samsung Internet Android Full support 1.0

Legend

Full support  
Full support

See also