CanvasRenderingContext2D: fillStyle property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The CanvasRenderingContext2D.fillStyle property of the Canvas 2D API specifies the color, gradient, or pattern to use inside shapes. The default style is #000 (black).

Note: For more examples of fill and stroke styles, see Applying styles and color in the Canvas tutorial.

Value

One of the following:

A string parsed as CSS <color> value.
A CanvasGradient object (a linear or radial gradient).
A CanvasPattern object (a repeating image).

Examples

Changing the fill color of a shape

This example applies a blue fill color to a rectangle.

HTML

html

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

JavaScript

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

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

Result

Creating multiple fill colors using loops

In this example, we use two for loops to draw a grid of rectangles, each having a different fill color. To achieve this, we use the two variables i and j to generate a unique RGB color for each square, and only modify the red and green values. (The blue channel has a fixed value.) By modifying the channels, you can generate all kinds of palettes.

<canvas id="canvas" width="150" height="150"></canvas>

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

for (let i = 0; i < 6; i++) {
  for (let j = 0; j < 6; j++) {
    ctx.fillStyle = `rgb(
        ${Math.floor(255 - 42.5 * i)}
        ${Math.floor(255 - 42.5 * j)}
        0)`;
    ctx.fillRect(j * 25, i * 25, 25, 25);
  }
}

The result looks like this:

Specifications

Specification
HTML Standard # dom-context-2d-fillstyle-dev

Browser compatibility

BCD tables only load in the browser

WebKit/Blink-specific note

In WebKit- and Blink-based browsers, the non-standard and deprecated method ctx.setFillColor() is implemented in addition to this property.

setFillColor(color, /* (optional) */ alpha);
setFillColor(grayLevel, /* (optional) */ alpha);
setFillColor(r, g, b, a);
setFillColor(c, m, y, k, a);