The short answer. Colorpicker is the open-source tool for manipulating colours as well as picking them: conversions, harmonies, and a picker. Pika is the small open-source picker. Couleurs grabs what is on screen and lets you tweak it. System Color Picker is the macOS picker as a standalone app with more features, which is the one to install if you only want the system behaviour without opening an app. MacSystemColors lists the system colours in light and dark mode, which is a developer reference rather than a picker. The dividing question is whether you need a value or a palette, because picking one colour and building a set that works together are different problems.

This guide covers 5 color tools for macOS. Every fact below is drawn from the same verified records that back each app’s own page. The recommendations are our editorial judgment, not payment.

Quick comparison

App What it is Pricing Licence Version
Colorpicker color utility Open source GPL-3.0 2.3.0
Couleurs color utility Free not published —
MacSystemColors developer tool Open source not published —
Pika design tool Open source MIT 1.9.0
System Color Picker design tool Open source not published 2.2.3

What actually decides this

  • Pick a value or build a palette. A picker returns a hex code. A palette tool returns a set that has a relationship — complementary, analogous, accessible. The second is a design decision and the first is a data entry step.
  • Which colour spaces it speaks. sRGB, Display P3 and Lab are not interchangeable, and a hex code from one is a different colour in another. A tool that shows the space it is working in is honest; one that shows only a hex value is hiding a decision.
  • Whether it can read the screen. A system picker samples any pixel. An in-app picker samples its own window. For design work the first is the only one that is useful, and it needs a screen-recording permission on recent macOS versions.
  • What it produces for a developer. Hex, RGB, SwiftUI Color, NSColor and a design token are five different outputs. A tool that can emit the one your codebase uses saves a manual conversion every time.
  • Whether it respects light and dark appearance. A system colour changes with the appearance. A hard-coded hex does not. A reference that shows both is the only way to pick a colour that works in both modes.

Our picks

  • Colorpicker — Its record describes a complete open-source colour manipulation tool with picking, which is the manipulation case. Choose it when you want to manipulate colours as well as sample them.
  • Pika — Its record describes an open-source colour picker app, which is the minimal case. Choose it when you want a small open-source picker.
  • Couleurs — Its record describes grabbing and tweaking the colours you see on screen, which is the screen-sample case. Choose it when you want to grab what is on screen and tweak it.
  • System Color Picker — Its record describes the macOS colour picker as an app with more features, which is the system case. Choose it when you want the system picker with more features and nothing else.
  • MacSystemColors — Its record describes showing all system colours in light and dark mode for Cocoa developers, which is the reference case. Choose it when you need the system palette in both appearances.

The apps

Colorpicker

Colorpicker is a color utility for macOS. Colorpicker is a complete open-source colors manipulation tool with picking! It is released under GPL-3.0.

What it does. Colorpicker is a clean, easy to use, yet efficient desktop application for color management. Pick any color on your screen with Colorpicker.

Colorpicker is listed with current version 2.3.0.

Full profile and verified facts for Colorpicker →

Couleurs

Couleurs is a color utility for macOS. Simple app for grabbing and tweaking the colors you see on your screen. It is free.

Full profile and verified facts for Couleurs →

MacSystemColors

MacSystemColors is a developer tool for macOS. Mac app that shows all system colors in light and dark mode for Cocoa developers. It is open source.

What it does. Mac app that shows all system colors in light an dark mode.

Full profile and verified facts for MacSystemColors →

Pika

Pika is a design tool for macOS. An open-source color picker app. It is released under MIT.

What it does. An open-source colour picker app for macOS.

Pika is listed with current version 1.9.0.

Full profile and verified facts for Pika →

System Color Picker

System Color Picker is a design tool for macOS. The macOS color picker as an app with more features. It is open source.

What it does. The macOS color picker as an app with more features.

System Color Picker is listed with current version 2.2.3.

Full profile and verified facts for System Color Picker →

How to choose

Open source: Colorpicker, MacSystemColors, Pika and System Color Picker (4 of 5).

Common mistakes

  • Copying a hex code from a P3 display and using it as sRGB.
  • Building a palette by eye and checking contrast afterwards.
  • Hard-coding a colour that was meant to follow the system appearance.
  • Installing a picker that can only sample its own window.
  • Choosing a palette that only works in one appearance mode.
  • Sampling a colour from a compressed screenshot and treating it as the source value.

How this guide was put together

Each app’s facts come from its own record: the developer’s own pages and repository, the App Store listing where one exists, and the documentation, each with a source grade and an access date. Where a fact rests on the developer’s own statement rather than on something we verified independently, the sentence says so. Where our data has no value for something, the guide says “not published” instead of guessing.

A price appears here only where the record carries one from a stated source; the guide never estimates one, and it records the pricing model alongside so the two can be read together. Prices change and vary by region, so each app links to its own page for the current detail.

The facts and the recommendations are kept apart on purpose. Everything in the app entries, the comparison table and the answers above is composed from the records. The short answer, the criteria and the picks are our editorial judgment: they reflect what we would choose and why, and they are not paid for. Where we make a recommendation we name the condition it applies under, because we do not call anything “the best” without explaining the criteria.

Frequently Asked Questions

How do I choose between these color tools?

There is no single answer — it depends on what you need. This guide covers 5 color tools: Colorpicker, Couleurs, MacSystemColors, Pika and System Color Picker. They differ mainly in pricing model, licence and the trade-offs each one carries. Pick by the trade-off you care about rather than by rank.

Are these color tools free?

Pricing across this group: open source (Colorpicker, MacSystemColors, Pika and System Color Picker) and free (Couleurs). We quote a price only where the record carries one from a stated source, and we never estimate one. Prices change and vary by region and by store, so always check the developer’s own page for the current figure.

Which of these color tools are open source?

Colorpicker (GPL-3.0), MacSystemColors (not published), Pika (MIT) and System Color Picker (not published) are open source.

Do these color tools support Apple Silicon?

Our data does not carry an explicit Apple Silicon statement for any app in this group, so we do not claim one. The absence of a statement is not the same as the absence of support.

How do I choose between them?

Start with how you pay: the guide groups these apps by pricing model, because the budget is the constraint most people actually have. Then check the trade-offs listed for each app: the limitations are the part that decides most people’s choice, because they describe what the app will not do for you.