Modular Unity Color Picker

A modular, performance-optimized color picker for Unity with full RGBA, HSV, and Hex support.

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🎥 Demo

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Features

• Supports RGBA, HSV, and Hex input
• Modular prefab — easily reusable across projects
• Performance optimized for smooth interaction
• Fully customizable UI (remove or modify elements safely)
• Displays previous color
• Built-in performance settings

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Installation

Option 1 — Unity Package (Recommended)

1. Download Color_Picker.unitypackage
2. Import it into your Unity project

Option 2 — Manual

1. Copy the Color Picker/ folder into your project

2. Drag the prefab into your Canvas

3. Assign:

   • Canvas
   • Graphic Raycaster

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Usage

Access current color

Color current = colorPicker.CurrentColor;

Set color

colorPicker.SetColor(Color.red);

Set using HSV

colorPicker.SetColorHSV(h, s, v);

Set using Hex

colorPicker.SetColorHex("#FF0000");

Listen to color changes

colorPicker.OnColorChanged += (color) =>
{
    Debug.Log(color);
};

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Design & Architecture

• Built as a single script + prefab system for simplicity
• Uses a modular structure so components can be removed safely
• Designed for plug-and-play integration

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Performance Notes

Early versions generated textures dynamically for UI elements, which caused major slowdowns (~20 FPS when interacting).

Optimizations include:

• Pre-generating static textures at startup
• Reusing textures instead of recalculating them
• Using Unity’s UI system for dynamic color updates

Result: smooth, responsive interaction

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Challenges

• Handling Canvas Scaler*issues for accurate drag behavior
• Implementing Hex and Color conversion
• Balancing visual accuracy vs performance

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Future Additions

• Radial Hue Sliders

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Customizable UI Example

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Structure

Assets/
└── Color Picker/
    ├── Scripts/
    ├── Prefabs/
    ├── Graphics/
    └── Demo/

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License

This project is licensed under the MIT License.