Alternatives to Sessions College Color Calculator
A free color wheel calculator that builds color harmonies and palettes from a chosen base color. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Sessions College Color Calculator
A free color wheel calculator that builds color harmonies and palettes from a chosen base color.
Replacements
Listings that take over the same core job as Sessions College Color Calculator.
Adobe Color
A free web tool from Adobe for building color palettes from harmony rules, images and accessibility checks.
Adobe Color builds palettes from the same classic harmonies and adds image extraction, a WCAG contrast checker and color blindness simulation, without the college course promotion.
Paletton
A long-running web color scheme designer built around a color wheel and classic harmony rules.
Paletton is a color wheel scheme designer with harmony models, color blindness simulation, WCAG contrast checks and exports to CSS, ACO and GIMP, but it is ad-supported.
Color Supply
An interactive web color wheel for building harmonious palettes and previewing them on sample shapes.
Color Supply offers an interactive color wheel for harmonious combinations with previews on sample shapes, though it has little documentation and no contrast checking described.
Atmos
A web-based color palette generator for UI designers, with shade scales and accessibility checks.
Atmos adds a color wheel with all harmony modes plus shade scales and semantic status colors for UI work, and some features may need an account.
Color Hexa
A web color encyclopedia with conversions, schemes, shades and colorblind simulation for any color.
Color Hexa shows schemes, shades and format conversions for any single color and adds colorblind simulation, but works as a reference rather than a palette builder.
ColorSpace
A web tool that generates matching color palettes and gradients from a single color.
ColorSpace generates many matching palettes and gradients from one starting color with very simple use, but offers few controls and no contrast checks.
Similar software
Related functionality, not a direct replacement.
Coolors
Fast color palette generator for browsing and tweaking combinations.
Color Designer
A suite of web tools for building palettes, gradients, shades and converting color codes.
Colormind
A web color palette generator that uses deep learning to produce color schemes in one click.
Encycolorpedia
Color reference website with hex codes, a color picker, color space conversions and paint matching.
Happy Hues
Curated color palettes shown applied live to an example website UI.
Khroma
AI color tool that learns your preferences and generates personalized palettes.
