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).
For more examples of fill and stroke styles, see Applying styles and color in the Canvas tutorial.
Syntax
ctx.fillStyle = color; ctx.fillStyle = gradient; ctx.fillStyle = pattern;
Options
color
- A
DOMString
parsed as CSS<color>
value. gradient
- A
CanvasGradient
object (a linear or radial gradient). pattern
- 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
<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:
Screenshot | Live sample |
---|---|
Specifications
Specification | Status | Comment |
---|---|---|
HTML Living Standard The definition of 'CanvasRenderingContext2D.fillStyle' in that specification. |
Living Standard |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
fillStyle | Chrome Full support Yes | Edge Full support 12 | Firefox Full support 1.5 | IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
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);
See also
- Canvas API
- The interface defining this property:
CanvasRenderingContext2D
- Values used by this property:
<color>
CSS data typeCanvasGradient
objectCanvasPattern
object