ColorUI vs Slot & Shaft
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
ColorUI compared with Slot & Shaft
| Detail | 
ColorUI | 
Slot & Shaft |
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| What it does | The ultimate color toolkit for designers, decorators, artists, and creators. 40+ free tools, no sign-up, fast on every device.
| Design DIY furniture from aluminum extrusion, resize it in 3D, and get a parts list that matches the model
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| US
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Palette Generator
- Color Picker with HEX, RGB, HSL, OKLCH, LAB outputs
- Image Color Extractor
- WCAG and APCA Contrast Checker
- Color Blindness Simulator
- CSS Gradient Generator
- Design Token Export W3C DTCG
- Color Wheel Harmonies
- Tailwind Color Palette
- Material You Colors
| - Resize designs in 3D to custom dimensions
- Parts list generated from the same model data
- All dimensions in metric and inches
- Every part linked to US sellers
- Designs checked against fit rules before listing
- Part data sourced from manufacturer drawings
- Designs labeled as AI draft or test-built
- No account needed to browse and design
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| What makes it different | - No sign-ups, no paywalls, runs entirely in browser
- Perceptually uniform color math with OKLCH and LAB
- Accessibility-first design with inline contrast and CVD simulation
- Export to multiple formats: CSS, Tailwind, SCSS, W3C tokens, Android, iOS
- Wide-gamut Display P3 and CSS Color Level 4 support
| - Parts automatically computed to fit together based on slot systems and hardware compatibility
- Data sourced from manufacturer specifications rather than guesses
- Cut lengths computed from design model, not estimated
- Distinguishes between reference data and physically verified designs
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 8 | 0 |
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| Citation Flow (Majestic) | 7 | 0 |
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| Referring domains (Majestic) | 9 | 0 |
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4 details filled in for both companies.
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