Interactive color wheel with harmony explorer and color mixing — complementary, analogous, triadic, split-complementary, and tetradic schemes for teachers and students.
- Runs locally
- Category Color & Design
- Best for Moving from a visual idea to reusable color values.
#368CE2Two colors directly opposite on the wheel (180° apart). Maximum contrast — each color makes the other look more vivid.
Blend two harmony colors and preview the result.
#8C8C8CWhat this tool does
A classroom-ready interactive color wheel built for art teachers and students. Click anywhere on the 360° HSL wheel to pick a base color, then instantly see its complementary, analogous, triadic, split-complementary, or tetradic harmony laid out as labeled swatches. Each harmony type includes a plain-language description so teachers can explain the rule without leaving the page.
The built-in color mixer lets you blend any two harmony colors at a draggable ratio and preview the result in real time — great for demonstrating why mixing red and blue gives violet, or why a complementary pair neutralizes toward gray. Adjust the hue, saturation, and lightness sliders to move around the wheel and see how harmony relationships hold across tints and shades.
Every swatch shows its HEX code and has a one-click copy button, so the lesson slides straight into Canva, Google Slides, or a student's design project. The full session state (selected color, harmony type, mixer settings) encodes into the URL — share a link to hand a pre-configured wheel to the whole class at once.
100% client-side: no images upload, no account, no tracking. Works offline once loaded.
Tool details
- Input
- Numbers
- The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
- Output
- Live result + Copy + Preview
- The result area focuses on usable output, with copy, download, or preview actions when supported.
- Privacy
- Browser-side processing
- The main tool logic does not call an external API, so inputs normally stay in the current tab.
- Save / share
- Shareable URL state
- Key settings are encoded in the URL so another person can reopen the same setup.
- Performance budget
- Initial JS <= 22 KB
- No WASM budget is declared, keeping the tool quick to open on mobile.
- Best fit
- Color & Design · Teacher
- Category and role tags drive related tools, internal links, and quick fit checks.
How to use
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1. Input
Paste or drop your content into the tool panel.
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2. Process
Click the button. All processing is local in your browser.
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3. Copy / Download
Copy the result or download to disk in one click.
How Classroom Color Wheel fits into your work
Use it while choosing, checking, converting, or documenting colors for real interface work.
Color jobs
- Moving from a visual idea to reusable color values.
- Checking contrast and accessibility before a UI ships.
- Keeping brand, design, and implementation color decisions aligned.
Color checks
- Verify contrast against the actual background, not just a sample swatch.
- Check dark and light themes separately when both exist.
- Copy the final format your design system or codebase expects.
Good next steps
These links move the current task into a more complete workflow.
- 1 Color Mixer Color mixer — blend any two colors with adjustable ratio, RGB/HSL/LAB color space, predict the result and copy hex. Open
- 2 Color Converter HEX ⇄ RGB ⇄ HSL ⇄ HSV ⇄ CMYK — instant 5-way conversion, live swatch — browser-only Open
- 3 CSS Border Radius Generator Border radius generator — independent 8-corner control + blob shape randomizer, live preview, copy CSS or SVG path. Open
Real-world use cases
Teach complementary color contrast on a class projector
An art teacher opens the tool on the classroom projector, selects a vivid red, switches to Complementary, and asks students to predict what color will appear opposite. The live wheel validates the guess instantly. The teacher then drags the hue selector around the full 360° while students call out the complement before it appears — ten minutes of engagement with zero prep materials.
Give every student group a different starting color to explore triadic harmony
Before class, configure the wheel to a different hue for each group (group A gets 0°, group B gets 40°, etc.) and switch to Triadic. Copy the URL for each configuration. Students open their link, record their three triadic colors, and reconvene to compare: despite different base colors, every group's three swatches are always equally spaced — reinforcing the geometric rule behind the scheme.
Demonstrate color mixing to show why complements neutralize
Set the base color to orange (#FF8C00), switch to Complementary, and drag the mixer ratio from 0% to 50%. Students watch the preview color march from orange through brown toward gray as the two complements cancel each other out — a digital stand-in for the paint mixing demo that doesn't require cleanup, works on any device, and can be paused mid-demo with a shareable URL.
Privacy
All color calculations run entirely in your browser. No colors, no URLs, and no usage data are ever sent to a server. Your selected hue, harmony type, and mixer settings are stored only in the page URL for sharing; they are not tracked or stored anywhere else. No account required.
FAQ
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