Hex Appeal

Hex Appeal is a colour palette studio that goes beyond picking colours. It analyses colour harmony, suggests complementary palettes, and exports production-ready values. Built for designers who think in systems, not swatches.

Colour palette studio with four editable swatches, a Smart Suggest button, a colour wheel showing tetradic harmony, and a data table of HEX, HSL, and OKLCH values
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What problem does it solve?

Most colour pickers let you choose colours in isolation. Hex Appeal approaches colour as a system. It analyses how colours relate to each other, flags combinations that clash, suggests alternatives based on harmony theory, and exports the final palette in formats ready for production code.

How it works

Start with a base colour or import an existing palette. Hex Appeal maps the colours against standard harmony models, visualizes their relationships, and suggests adjustments. When the palette is ready, export it as CSS custom properties, design tokens, or plain hex values.

Whom it’s for

Designers and developers who build colour systems for interfaces, brands, or data visualizations and want a tool that understands harmony, not just hue.

Tech

Client-side application with real-time colour math.

Frequently asked questions

What is Hex Appeal?

A colour palette studio with harmony analysis, smart suggestions, and export. It helps designers build palettes that work together mathematically and perceptually.

What colour harmonies does it support?

Complementary, analogous, triadic, split-complementary, and other standard harmony models.

Can I export palettes?

Yes. Export as CSS custom properties, design tokens, or plain hex values.

Is it free?

Yes. No signup required.