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Table of Contents
Choose the right tool
Shortcut keys and usage methods
Application scenarios and precautions
Home Common Problem How to use a color picker from my screen

How to use a color picker from my screen

Jul 17, 2025 am 01:07 AM

The color selection can be achieved through the screen color picker, which is easy to operate and practical. Common tools include Windows' own "magnifying glass", ColorPicker, macOS's "digital colorimeter", and cross-platform online tools. When using it, press the shortcut key (such as Ctrl/Cmd C) to activate the straw tool, and click on the target area to copy the color value. Techniques include observing color changes and selecting the closest color, sampling multiple points to average, and using magnification preview to improve accuracy. Application scenarios cover UI design, CSS style, brand color extraction, etc., but attention should be paid to the impact of screen brightness and device differences on color accuracy. It is recommended to take colors in standard display mode and combine multiple devices or professional color calibration tools to ensure consistency.

How to use a color picker from my screen

It is actually quite common to choose colors. Sometimes you do design, adjust code, or just want to know what your favorite color value is. Using the screen color picker to directly pick up colors from the screen is one of the fastest ways, and it is not difficult to operate.

How to use a color picker from my screen

Choose the right tool

There are many free and paid color picking tools on the market, depending on which system you want to use. Both Windows and macOS have basic features, but if you need more accurate or more format output (such as HEX, RGB, HSL), you can consider some third-party tools:

How to use a color picker from my screen
  • Windows : You can use the color picking function that comes with the "magnifying glass", or install gadgets like ColorPicker .
  • macOS : The system comes with a "digital colorimeter", which can be found in "Applications > Utility Tools".
  • Cross-platform/web version : Some online tools can directly upload screenshots or pick up colors in real time, which is suitable for people who don’t want to install software.

When choosing a tool, pay attention to whether it supports your commonly used color formats and whether there are shortcuts to copy to the clipboard.


Shortcut keys and usage methods

The operation process of most color picking tools is similar: after starting, press the shortcut key (for example, by default, Ctrl/Cmd C), then the mouse will become a straw shape, move to the position you want to pick the color and click it, and the color value will be copied automatically.

How to use a color picker from my screen

Several common tips:

  • Pay attention to the color changes when dragging the mouse and choose the closest to the space you want.
  • If it is a gradient or blurred area, you can point it several times and take the average value.
  • Some tools support magnification and previewing, which enables more accurate positioning of pixels.

Different tools may have different settings, such as whether historical colors are displayed, whether transparency detection is enabled, etc. These can be adjusted according to your own needs.


Application scenarios and precautions

Many people use color pickers to design UI, write CSS styles, or extract brand main colors. Two things to note at this time:

  • Screen brightness affects color accuracy : If the color is particularly critical, it is recommended to take colors in standard display mode to avoid high contrast or night mode interference.
  • Different devices displays vary : the same color may look different on different monitors, especially when color management is inconsistent.

For example: A blue color you see very accurately on your computer may be purple on your phone. At this time, it is best to use multiple devices to confirm, or use professional color calibration tools to assist.


Basically, that's all, the operation is not complicated, but details are easy to ignore. Find a convenient tool and match it with common settings. You can get color selection much faster in the future.

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