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Manage Accessible Design System Themes With CSS Color-Contrast

css color

The web is a complex and ever-changing tool that can be difficult to navigate for many people. While there are many aspects of website design that are difficult for those with vision impairment, color contrast is the one most talked about. In this article, we’ll be discussing how to use CSS color-contrast() in your own website to make it more accessible.


CSS color-contrast is a new way to manage themes for your design system. It allows you to adjust the colors of your system to better match the user’s environment. This can be especially helpful for people with visual impairments, who may have difficulty seeing certain colors.

How Does Color Affect Us?

Color is all around us, and it affects us in many ways. Some colors can energize us, while others can calm us down. Some colors can make us feel happy, while others can make us feel sad.

But did you know that color can also affect our ability to read and understand information? That’s right – the colors we use in our design can either help or hinder our users’ ability to comprehend the content we’re presenting to them.

This is why it’s so important to carefully consider the colors we use in our design, especially when it comes to creating accessible design system themes.

Some colors are better than others when it comes to contrast. Contrast is the difference in lightness or darkness between two colors. When there is high contrast between two colors, they are easier to distinguish from each other. This is why black text on a white background is so easy to read – the high contrast between the two colors makes the text pop.

On the other hand, low contrast between two colors can make them more difficult to distinguish from each other. This is why yellow text on a white background can be more difficult to read – the low contrast makes it harder

Discrimination and Color Blindness

Design systems are built to help create and maintain digital products. They’re usually made up of style guides, component libraries, and other resources that help teams work together efficiently.

One important aspect of design systems is color. Colors can be used to convey information, create visual hierarchy, and help with branding. But it’s important to consider how colors will be experienced by everyone who uses the product — not just those with perfect vision.

Some people experience color differently than others. There are three main types of color blindness: tritanomaly (blue-yellow), protanomaly (red-green), and deuteranomaly (red-green). All of these conditions make it difficult to see some colors or shades of colors. And when these conditions aren’t considered in the design process, it can lead to discrimination and exclusion.

There are a few things that can be done to make sure that everyone can experience color in a design system:

  1. Use a limited number of colors: Using too many colors can be overwhelming for someone with a color vision deficiency. Stick to a limited palette of two or three colors, plus black and white.

  2. Use high-cont

How to Check for Accessibility

One of the most important aspects of creating an accessible design is making sure that the colors you use have sufficient contrast. Fortunately, there are a number of ways to check for color contrast accessibility.

One method is to use the Color Contrast Checker tool from the World Wide Web Consortium (W3C). This tool allows you to enter the foreground and background colors you’re using and then tells you whether or not they meet the WCAG 2.0 guidelines for color contrast.

Another way to check for color contrast is to simply look at the colors you’re using side by side. If you can’t tell them apart, then they probably don’t have enough contrast. You can also use a online color picker to help you compare colors.

Finally, keep in mind that some people with vision impairments may have difficulty seeing colors at all. For these users, it’s important to make sure that your content is still accessible without relying on color alone.

CSS classes to create contrast

As designers, we are always looking for ways to create contrast in our designs. One way to do this is to use CSS classes to create color-contrast themes. By using these classes, we can make sure that our designs have the right amount of contrast, regardless of the background color.

Use the colors in your design

As a designer, you have a lot of control over the colors used in your design system. While it’s important to maintain accessibility and contrast in your color palette, you can also use color to create themes that can be applied across your system.

In this article, we’ll discuss how to manage accessible design system themes with CSS color-contrast. We’ll cover some tips for choosing colors that provide good contrast, as well as how to use CSS to create themes that can be applied across your system.

When it comes to choosing colors for your design system, it’s important to consider both accessibility and contrast. You want to choose colors that will be easy for everyone to see, regardless of their level of vision. To do this, you’ll need to pay attention to the color contrast ratio.

The color contrast ratio is the difference in luminance between two colors. The higher the ratio, the greater the contrast between the two colors. A ratio of 4.5:1 is generally considered to be the minimum level of contrast that should be used for body text and other large blocks of text.

When choosing colors for your design system, aim for a contrast ratio of 4.5:1 or higher

The best color combinations to use

When it comes to designing an accessible website, one of the most important things to keep in mind is color contrast. This is especially true if you are using a pre-existing design system or theme. While there are many ways to ensure sufficient color contrast, one of the easiest is to use the colors that are already part of your design system.

There are a few different ways to go about this. One is to simply choose colors that have a high level of contrast. Another is to use colors that are specifically designed for accessibility, such as those in the WCAG color palette. And finally, you can use a color contrast checker tool to test your colors and make sure they meet the necessary requirements.

Whichever method you choose, the important thing is to make sure your site is accessible to all users. By following these guidelines, you can be confident that your site will be usable by everyone, regardless of their vision.

How to prevent mobile devices from showing your site in black and white

Did you know that you can manage the theme of your site’s colors with CSS? You can control how mobile devices display your site by using the CSS color-contrast property.

When using this property, you can set the color of your site’s text and background to either light or dark. This is useful if you want to make sure your site is readable on all devices.

To set the color-contrast of your site, simply add the following line of code to your CSS file:

body { color-contrast: light; }

This will ensure that your site is displayed in light colors on all devices. If you want to change the color-contrast back to dark, simply change the value to “dark”.

How to use it?

Designing an accessible color scheme for your website or app can be a challenge, especially if you’re starting from scratch. A great way to get started is to use a color-contrast tool like the one from the World Wide Web Consortium (W3C).

With this tool, you can enter the foreground and background colors you’re considering and it will tell you whether they meet the minimum contrast ratio required for accessibility. You can also experiment with different combinations to see what looks best.

Once you’ve settled on a color scheme, you can use CSS to turn it into a theme that can be applied to your entire site or app. For example, you could create a class for each color and apply it to the appropriate elements. You can also use CSS variables to make your themes even more flexible and easy to manage.

What are the best practices?

When it comes to creating accessible design system themes, one of the most important things to keep in mind is contrast. Contrast is what makes text readable and background colors visible. Too little contrast can make text difficult to read, while too much contrast can be overwhelming. The best practice is to find a balance that works for your specific needs.

There are a few different ways to measure contrast. The most common method is to use the Web Content Accessibility Guidelines (WCAG) 2.0 guidelines. These guidelines recommend a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text. You can use a tool like the WAVE Web Accessibility Evaluation Tool to test your pages and see if they meet these guidelines.

If you want to go above and beyond the WCAG guidelines, you can try using a larger contrast ratio. A good rule of thumb is to use a ratio of 7:1 for normal text and 4.5:1 for large text. This will make your pages even more accessible for people with visual impairments.

When choosing colors for your design system themes, it’s important to keep contrast in mind. You can use a tool like Adobe Color CC


In conclusion, using CSS to manage your accessible design system themes is a great way to ensure that your site is as accessible as possible. By using color-contrast, you can make sure that your site’s colors are easy for everyone to see and use. So if you’re looking for an accessible way to manage your design system themes, CSS is the way to go.

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