ToodleTools

Tetrad Color Scheme Generator

Generate a tetradic (double complementary) color scheme. Four colors arranged in two complementary pairs.

Base Color

HEX
RGB
R
G
B
HSV
H
S
V
HSL
H
S
L

Color Scheme

🔷 What Is a Tetradic Color Scheme?

💠 Four Complementary Colors

A tetradic scheme uses four colors arranged as two complementary pairs — forming a rectangle on the color wheel. This provides the richest possible palette while maintaining mathematical color harmony.

📋 Complete Palette Output

Enter a base color and receive three tetradic companions with HEX, RGB, and HSL codes. Four colors give you enough variety for complex, multi-element designs.

⚡ Maximum Variety

Tetradic schemes offer the widest range of hue variety while maintaining harmony. They are ideal for projects that need a rich, diverse color palette.

⚙️ How to Generate Tetradic Colors

1
Select Base Color

Enter your primary color as the anchor for the tetradic calculation.

2
View Four Colors

The tool generates the rectangular tetradic scheme — four colors forming two complementary pairs on the color wheel.

3
Apply to Design

Use one color as dominant, one as secondary, and the remaining two as accents for a balanced, vibrant design.

Complex UI Design Systems

Applications with multiple functional areas — editor panels, sidebars, status indicators, action buttons — benefit from four distinct yet harmonious colors. Each UI zone gets its own color identity while the tetradic harmony ensures the overall interface feels cohesive rather than chaotic.

Marketing & Campaign Design

Multi-channel marketing campaigns need enough color variety to differentiate materials while maintaining brand cohesion. A tetradic palette gives you four coordinated colors for social media graphics, email headers, landing pages, and print collateral.

Data Visualization with Four Categories

Charts displaying four data series, categories, or metrics need four visually distinct colors. Tetradic colors are mathematically optimized for contrast between all pairs, ensuring each data series is clearly distinguishable from every other series in your visualization.

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Heads up!

ToodleTools is currently in active development. You might encounter a few bugs while we build. Thanks for your patience!