ComfyUI-Rennart
Set of custom nodes for ComfyUI
ComfyUI-Rennart Custom Nodes for ComfyUI
Set of custom nodes for ComfyUI
Installation
install on ComfyUI-Manager, search ComfyUI-Rennart and install
List of nodes
Rennart_Color_Palette<br> Rennart_Color_Preview<br> Rennart_Date_String<br> Rennart_Gradients<br> Rennart_Image_Crop<br> Rennart_Image_Size<br> Rennart_Load_Image<br> Rennart_Offset_Image<br> Rennart_Random_Number<br>
How To Use
🎨 Rennart Color Palette
An advanced node for working with professional color theory and building harmonious color schemes. Generates dynamic color palettes based on Itten's color theory (Complementary, Analogous, Triadic, Split-Complementary, Tetradic, Monochromatic) with High/Low key controls and brightness variations. Features an embedded OS/Browser gradient color picker. <br> By selecting a single color on the picker, this node allows you to:
- Apply Itten's Color Wheel Rules: Automatically generate classic color harmonies—complementary, triadic, analogous, tetradic, and split-complementary combinations based on the fundamentals of color science.<br>
- Adjust Color Keys: Control the overall tonal range of your composition by building palettes in High Key (light, airy tones), Low Key (deep, dark, dramatic shades), or setting dominant key colors.<br>
- Formulate Palettes: Output HEX codes to pass accent and base colors downstream into generation, color-grading, and styling nodes (specifically tailored for Ideogram-4 JSON prompts).<br> <br> <b>Pro Tip:</b> You can chain multiple Rennart Color Palette nodes in sequence to construct extended, highly nuanced color palettes.<br> <br>
🎨 Rennart Color Preview
Dynamic visualizer node with an adaptive grid algorithm that neatly renders array-based hex strings onto the canvas. <br> <img width="889" height="659" alt="2026-08-26_18-53-07" src="https://github.com/user-attachments/assets/a7add16b-b49b-4e8d-89fe-e2aa85b4f750" />
📜 License
MIT License. Use at your own risk without any warranties. See the LICENSE file for details
Thanks to ComfyUI community for inspiration and support.<br>
Special thanks to Raykosan and Art-xmaster for inspiration and support.<br>
If you like this node, don't forget to star on GitHub!