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About Viz Palette
Viz Palette helps you check whether a set of colors works for charts. You enter colors as hex, RGB or HSL, reorder and edit them, and see them applied to example charts and text under simulated deuteranomaly, protanomaly, protanopia, deuteranopia and greyscale.
A color report flags pairs that are hard to tell apart as lines, medium areas or large areas, and suggests avoiding name conflicts in categorical palettes. The palette can be copied as a JavaScript array.
Strengths
- Simulates several color vision deficiencies
- Flags colors that are hard to distinguish at different sizes
- Copies palettes as JavaScript arrays
Limitations
- Focused on data visualization palettes only
- Does not generate palettes itself; links to other tools for that
Details
- Pricing
- FreeFree to use in the browser.
- License
- Proprietary
- Developer
- Susie Lu and Elijah Meeks
- Platforms
- Web
- How it runs
- Web application
- Account
- Not required
- Works offline
- No
- Best suited for
- Designers and developers choosing chart colors that stay readable
- Categories
- Color tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to Viz Palette
Compare allSoftware that can replace Viz Palette for an important use case, and what changes if you switch.
Chroma.js Color Palette Helper
A web tool for designing perceptually balanced, colorblind-safe palettes for data visualization.
Chroma.js Color Palette Helper also checks colorblind safety for charts and maps, and it can build perceptually balanced palettes itself instead of only testing them.
iWantHue
A web tool that generates palettes of clearly distinct colors for data visualization.
iWantHue generates perceptually distinct categorical palettes with a colorblind option and can correct existing palettes, exporting to JSON, CSS and JavaScript, though optimisation is slow.
HCL Wizard
Web tools for designing HCL-based color palettes and checking them for color vision deficiencies.
HCL Wizard designs HCL-based palettes and includes a color vision deficiency emulator, matching the colorspace packages for R and Python used by researchers.
ColorBrewer
A web tool for choosing sequential, diverging and qualitative color schemes for maps and charts.
ColorBrewer is open source and offers curated sequential, diverging and qualitative schemes with colorblind and print filters, exporting to ASE, GIMP, JavaScript and CSS.
Data Color Picker
A web tool that builds visually equidistant color palettes for charts, maps and dashboards.
Data Color Picker generates visually equidistant chart palettes with light and dark previews and SVG export, but caps palettes at eight colors and lacks deficiency simulation.
Leonardo
Adobe's web tool for generating accessible color themes and scales from target contrast ratios.
Leonardo is open source with separate data visualization scale tools driven by target contrast ratios, though it is aimed more at design system work.
Adobe Color
A free web tool from Adobe for building color palettes from harmony rules, images and accessibility checks.
Adobe Color generates harmony-based palettes and simulates color blindness, but it is aimed at general palettes rather than distinguishing chart colors at different sizes.
Similar software
Related functionality, not necessarily a direct replacement.
Coblis
A browser-based simulator that shows how an image looks to people with color vision deficiencies.
Sim Daltonism
A color blindness simulator for Mac and iOS that filters a screen region or camera view.
Toptal Colorblind Web Page Filter
A web tool that renders a web page through color blindness filters to test its design.
WhoCanUse
A web tool showing how a text and background color pair looks to people with various vision conditions.
Paletton
A long-running web color scheme designer built around a color wheel and classic harmony rules.
