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Head-to-head · Color Palette Generators

Fluent UI Theme Designer vs ColorDesigner

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score Fluent UI Theme Designer #3 in Color Palette Generators 8.7/10 Open source ✓ 1 of 5 features Visit site
ColorDesigner #8 in Color Palette Generators 7.5/10 Free plan · 14-day trial Free planFree trial✓ 4 of 5 features Visit ColorDesigner

Fluent UI Theme Designer leads on 0 checks, ColorDesigner on 2, and 4 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFluent UI Theme Designer · 8.7/10
  • Free planonly ColorDesigner
  • Free trialonly ColorDesigner
  • Most featuresColorDesigner · 4 of 5

Fluent UI Theme Designer scores higher on our rubric for color palette generators: 8.7 against 7.5 out of 10; our editors rank them #3 and #8.

On palette methods, ColorDesigner gives you Both where Fluent UI Theme Designer offers Generate. ColorDesigner offers image extraction; Fluent UI Theme Designer doesn't. ColorDesigner offers saved palettes; Fluent UI Theme Designer doesn't.

Fluent UI Theme Designer is the better fit for fluent UI developers creating semantic themes. ColorDesigner is the better fit for designers needing detailed color controls cheaply.

  • Fluent UI Theme Designer fits best

    Fluent UI developers creating semantic themes

  • ColorDesigner fits best

    Designers needing detailed color controls cheaply

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Side by side

Feature Fluent UI Theme Designer 8.7/10 Visit ↗ ColorDesigner 7.5/10 Visit ↗
At a glance
Editor score 8.7 7.5
Ranking #3 in Color Palette Generators #8 in Color Palette Generators
Best for Fluent UI developers creating semantic themes Designers needing detailed color controls cheaply
Pricing model Free Free plan + paid
Starting price Open source $3.10/mo
Free plan Not checked yet ✓ (best)
Free trial — 14 days
Deployment Cloud Cloud
Platforms Web Web
Support Community, Docs Email
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business
Features Fluent UI Theme Designer 1/5 · ColorDesigner 4/5
Image extraction — ✓ (best)
Accessibility checks ✓ ✓
Saved palettes — ✓ (best)
Brand color library — Not checked yet
Print color support Not checked yet ✓ (best)
Specs
Palette methods Generate Both
Export formats Code, JSON, PowerShell HEX, RGB, HSL, LAB, LCH, OKLAB, OKLCH
Our review
Pros
  • Generates Fluent UI palettes and semantic theme slots
  • Previews themed components and checks contrast ratios
  • Exports JavaScript, TypeScript, JSON, PowerShell, and CodePen examples
  • HCL palette controls, harmonies, tints, shades, and tones
  • Image extraction, gradients, conversions, and color naming
  • Contrast and colorblindness checks with saved projects
Cons
  • Does not extract palettes from images
  • Does not save palettes
  • Focused on Fluent UI React rather than general palette generation
  • Runs in the browser rather than as a desktop or mobile app
  • Free plan limits saved colors, palettes, projects, and HEX export
  • Advanced exports and tools require the Pro plan
Our verdict

Fluent UI Theme Designer is a browser-based, open-source theming utility for developers and designers working with Microsoft’s Fluent UI React components. It lets users adjust primary, text, and background colors, then inspect the…

Read the review →

ColorDesigner is a browser-based collection of color tools for designers and developers who need more than basic palette picking. It supports palette building with tints, shades, tones, and harmonies, along with HCL controls, presets,…

Read the review →
  1. Fluent UI Theme DesignerColor Palette Generators 8.7Open source
  2. ColorDesignerColor Palette Generators 7.5Free plan · 14-day trial

Strengths and trade-offs

  • Fluent UI Theme Designer — where it wins

    • Generates Fluent UI palettes and semantic theme slots
    • Previews themed components and checks contrast ratios
    • Exports JavaScript, TypeScript, JSON, PowerShell, and CodePen examples

    Where it doesn't

    • Does not extract palettes from images
    • Does not save palettes
    • Focused on Fluent UI React rather than general palette generation

  • ColorDesigner — where it wins

    • HCL palette controls, harmonies, tints, shades, and tones
    • Image extraction, gradients, conversions, and color naming
    • Contrast and colorblindness checks with saved projects

    Where it doesn't

    • Runs in the browser rather than as a desktop or mobile app
    • Free plan limits saved colors, palettes, projects, and HEX export
    • Advanced exports and tools require the Pro plan
  • Fluent UI Theme Designer8.7/10 · Open source

    A focused web tool for building accessible Fluent UI semantic themes.

    Visit siteFull verdict →
  • ColorDesigner7.5/10 · Free plan · 14-day trial

    A detailed, affordable color toolkit with strong free features and web-only access.

    Visit ColorDesignerFull verdict →

More comparisons

All color palette generators comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update