EmptyImage - ComfyUI Built-in Node Documentation

Complete documentation for the EmptyImage node in ComfyUI. Learn its inputs, outputs, parameters and usage.

Function Description

The EmptyImage node is used to create blank images with specified dimensions and colors. It can generate solid-color background images, commonly used as starting points or background images for image processing workflows.

Working Principle

Just like a painter preparing a blank canvas before starting to create, the EmptyImage node provides you with a “digital canvas”. You can specify the canvas size (width and height), choose the base color of the canvas, and even prepare multiple canvases of the same specifications at once. This node is like an intelligent art supply store that can create standardized canvases that perfectly meet your size and color requirements.

Inputs

Parameter Name	Data Type	Description
width	INT	Sets the width of the generated image (in pixels), determining the horizontal dimensions of the canvas
height	INT	Sets the height of the generated image (in pixels), determining the vertical dimensions of the canvas
batch_size	INT	The number of images to generate at once, used for batch creation of images with the same specifications
color	INT	The background color of the image. You can input hexadecimal color settings, which will be automatically converted to decimal

Outputs

Output Name	Data Type	Description
image	IMAGE	The generated blank image tensor, formatted as [batch_size, height, width, 3], containing RGB three color channels

Common Color Reference Values

Since the current color input for this node is not user-friendly, with all color values being converted to decimal, here are some common color values that can be used directly for quick application.

Color Name	Hexadecimal Value
Black	0x000000
White	0xFFFFFF
Red	0xFF0000
Green	0x00FF00
Blue	0x0000FF
Yellow	0xFFFF00
Cyan	0x00FFFF
Magenta	0xFF00FF
Orange	0xFF8000
Purple	0x8000FF
Pink	0xFF80C0
Brown	0x8B4513
Dark Gray	0x404040
Light Gray	0xC0C0C0
Navy Blue	0x000080
Dark Green	0x008000
Dark Red	0x800000
Gold	0xFFD700
Silver	0xC0C0C0
Beige	0xF5F5DC