Color Tools for Designers & Developers
A focused toolkit for building accessible, on-brand color systems—from generating palettes to checking WCAG contrast for real-world interfaces.
Professional color tools for modern design workflows
The Theme & Color tools are built for product designers, front-end developers, and brand teams who need reliable, repeatable color decisions—not guesswork. Instead of juggling screenshots and spreadsheets, you can generate palettes, document decisions, and check accessibility in one place.
Color palette generator
Use the color palette generator to build harmonious palettes for websites, design systems, or brand identities. Start from a single base color and explore complementary, analogous, or triadic schemes with hex values ready to paste into Figma, CSS, or your component library.
Website color palette preview
The website color palette preview hub lets you set five brand colors once and open dashboard, landing page, or mobile app mockups with your palette in the URL. Sub-pages include dashboard, landing page, and mobile app previews so you can judge contrast and hierarchy before building in Figma or code.
Accessibility contrast checker
The accessibility contrast checker helps you validate text and background pairs against WCAG contrast ratios. Quickly see which combinations pass AA or AAA, then adjust your palette before development so your interface ships accessible by default.
Color mixing simulator
Try the color mixing simulator to see what colors make when mixed like paint, not digital light. It uses an RYB color model so combinations like blue + yellow resolve to realistic green-style mixes.
Color name finder
The color name finder turns any hex into the closest named color plus RGB, HSL, and CMYK values you can copy into specs or code.
Tint and shade generator
Use the tint and shade generator to build ten lighter tints and ten darker shades from one base hex, then export CSS variables or a Tailwind color scale.
Together, these free online color tools give you a practical way to design, test, and maintain a professional color system across marketing sites, apps, and design systems—without sacrificing performance, legibility, or brand consistency.
Related guides
Deep dives that pair with these tools: Forest green hex code, Forest green palette, Ocean Breeze hex codes, Ocean Breeze palette, WCAG contrast guide, Dark mode palettes, Best palette tools. See the full list on the color blog.
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