Designing accessible color themes for a leading business intelligence platform

Background: iSoftStone identifies accessibility and usability concerns 

iSoftStone’s senior accessibility designer was working with a team at a global technology company to develop user personas for a well-known business intelligence platform when she noticed something important about the platform’s color accessibility 

Its base theme, built-in report themes, and default color sequences failed WCAG Success Criterion 1.4.11 for non-text contrast.  

Users with moderately low vision, low contrast vision, or color vision deficiency might not be able to see all the details in or distinguish between adjacent colors within data visuals and reports. And users who wanted to create reports didn’t have any built-in tools to help them meet compliance standards at their organizations. 

Our client’s platform allows users to visualize data and then easily infuse the visuals into other apps. In short: its main purpose is to make data seen. Our client believes in and is committed to integrating accessibility, so when leaders were alerted to the color contrast issue they quickly embraced the opportunity to create a better experience for everyone. 


Our solution: Accessible versions of favorite color themes 

A relative color contrast of 3:1 or greater makes data visuals and report elements more distinguishable for people who don’t see a full range of colors. So, we proposed an elegant, simple solution to our client: we’d partner with them to create accessible versions for three of the platform’s best-known color themes, plus two brandnew themes designed with compliance and inclusion in mind      

The iSoftStone and client teams identified three criteria for success. Each of the new accessible color themes should: 

  • Have at least a 3:1 contrast ratio by default. 
  • Be intuitive to use, something a report author could quickly select and/or use to update existing visualizations. 
  • Feel like the existing themes and be in keeping with the platform aesthetic and our client’s brand. 

When designing the new palettes, we considered the needs of specific visual disabilities like Deuteranopia, Protanopia, Tritanopia, and Monochromacy. Our accessibility designer worked to keep the colors close to the platform’s original themes while meeting the all-important contrast ratio. Additionally, each theme was designed for color harmony, ensuring a visually pleasant experience for every user.  

Finally, we created and supplied JavaScript Object Notation (JSON) files of each theme to developers for a fast implementation. 


Default color theme sequence illustrating all colors does not have a contrast ratio of 3:1 with adjacent colors. Accessible color theme sequence showing all colors meet or exceed a 3:1 contrast ratio.More than 50% of the platform’s default theme failed to meet a 3:1 contrast ratio. iSoftStone helped create a new accessible version in which every color meets or exceeds the ratio.


As part of our service, iSoftStone supported the launch of the accessible themes by introducing them to business partners at an internal tech talk. We also wrote a public blog post for the platform’s user community. In addition to the customary explanation of how apply the themes, our expert provided some gentle education about visual disability and contextualized the development of the new themes within the concept of accessibility by default.  


The impact: A great experience for all users 

Side-by-side comparison of two bar charts. The first chart uses a default color theme. The second chart uses an accessible version of the color theme.

These example bar charts illustrate the difference between the platform’s default color theme (left) and the new accessible version (right).


Our client has provided a quick, simple way for users to create accessible data visuals and reports – and for people with visual disabilities to read them. Although some details like line charts will still require manual user review, it’s a game changer for the millions of people who simply couldn’t read the platform’s pie charts, graphs, and data points before.  

A major success factor for the project: our client’s approach of including accessibility at the beginning of the development lifecycle. The teams could identify and solve the problem swiftly because iSoftStone’s accessibility experts were already embedded, helping the platform designers and developers consider accessibility as they worked on new features.  

As John Baron, iSoftStone’s Associate Vice President of Accessibility, notes, “Having a deep subject matter expert within an organization provides clarity around good accessibility thinking. It’s an opportunity for designers and engineers to have better understanding of, directionally, what they need to be doing when developing or designing for accessibility.”

Key takeaways.

iSoftStone helps design accessible color themes for a world-leading business intelligence platform 


Enterprise platform for business intelligence and data visualization

Indicates accessibility features or services.


Accessibility design, useability testing, accessibility testing, visual design, accessibility awareness, accessibility for product and feature development 


  • Accessible and WCAG compliant color themes 
  • Improved useability for people with visual disabilities 
  • Available to millions of platform users around the globe
Man and woman meeting in a bright and modern office. Whiteboard with writing and sticky notes is behind them.

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