Contrast Checker

Easily check color contrast online for free.


Quote n. 1

Perfection is achieved, not when there is nothing more to add,
but when there is nothing left to take away.
— Antoine de Saint-Exupéry

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Good contrast for small text (below 18pt) and great contrast for large text (above 18pt or bold above 14pt).


Color Contrast Checker is an online tool that can determine the visibility of your color combinations by analyzing them according to WCAG standards. It lets you enter specific color values, such as HEX and RGB, for background and foreground colors. After entering the colors, the tool uses certain formulas and standards, such as those set down in the web content accessibility guidelines (WCAG), to calculate the contrast ratio of the colors. This ratio then gives you a rating regarding whether or not the colors are in good contrast and, hence, could be read by all, including the visually impaired and color-blind. With a very clear and functional user interface, it has helped to enable you to make sure that your design choices are good-form and functional.

 

How Does a Color Contrast Checker Work?

A Color Contrast Checker operates through a straightforward yet effective process. When you enter your chosen background and foreground colors into the tool, it calculates the contrast ratio by comparing the luminance of each color. Luminance refers to the brightness or intensity of a color, and this calculation is crucial for determining how well the colors work together. The tool uses mathematical formulas that factor in the relative brightness of both colors to generate a contrast score. This score is then measured against accessibility benchmarks, such as the minimum contrast ratios recommended by WCAG. If your design meets or exceeds these ratios, it receives a positive rating; if not, the tool will indicate that adjustments are necessary and you can use the 2 buttons that can fix the background or foreground color according to your color ensuring your design is both visually appealing and user-friendly.

 

How to Check the Color Contrast?

Checking your color contrast has never been this easy; all you have to do is:

  1. Enter the Background and Foreground color by adding the HEX code or selecting the color manually.
  2. Check the Preview and The Contrast score gets updated in real-time.
  3. A score above 5 is good, while a score below 4.5 indicates a need for adjustment.
  4. If the number is below 4.5 the tool will provide you with buttons to fix the Background or Foreground colors.
  5. Choosing any of the buttons will change the color accordingly, just enough to make the contrast Good.

 

Why Checking Color Contrast is Important

Checking color contrast is a critical aspect for several reasons. First and foremost, proper contrast enhances accessibility. Not all users have the same visual capabilities; individuals with visual impairments or color blindness may struggle to differentiate between similar hues. By ensuring sufficient contrast, you make the content more readable and navigable for a diverse audience. This is not just a matter of aesthetics—it’s a vital step towards inclusivity in digital design. In addition, proper contrast improves overall user experience (UX).