Accessible from the Start: Building a Platform for Aspiring Home Visitors
Today, we’re excited to share the story behind “Knock” - a professional development platform for aspiring home visitors. This isn’t just a training tool; it’s a resource-rich, assessment-driven professional community designed to help future home visitors determine if this path is right for them and access everything they need to get started confidently. From the outset, we made accessibility a core focus—because a product that works for everyone is what truly makes a difference.
Knock isn't meant for working with families directly. Instead, it's dedicated to preparing those who aspire to become home visitors. With users coming from diverse backgrounds, it was essential to ensure that assessments, learning resources, and networking features were intuitive and accessible to everyone exploring this meaningful career. To meet these needs, we implemented a range of thoughtful design choices to create an inclusive experience. Here's how we made accessibility central to our design:
Once we defined the visual direction, our team ensured that all interface elements met contrast accessibility standards. We used contrasting colors for text, buttons, and icons against their backgrounds to improve readability and accessibility, especially in varying lighting conditions or for users with visual impairments.
We ensured that important information wasn’t communicated solely by color. Instead, we incorporated icons and text cues alongside color indicators to support users who may have difficulty distinguishing colors.
In our effort to make the platform easy to navigate, we carefully selected fonts that enhance readability. For headers, we chose PT Serif, a modern serif font known for its legibility and elegance. The slight serifs add character while maintaining a clean, professional look, making it easy to quickly identify and differentiate key content sections.
For body copy, we opted for Aileron, a versatile sans-serif font. Aileron’s simple, open letterforms and balanced proportions make it highly readable on screens of all sizes, reducing eye strain and improving the overall user experience. Together, PT Serif and Aileron provide a harmonious blend of style and clarity, ensuring that content is visually appealing and accessible to all users.
We ensured that buttons and other interactive elements met a minimum size of 44x44 pixels. This design choice accommodates users with motor impairments and reduces accidental taps, making the app more user-friendly.
We used universally recognized icons, like a magnifying glass for search or a house for home, and paired them with text labels. This approach helps all users, especially those new to digital interfaces, understand the icons’ meanings without confusion.
Our design followed mobile-first principles to ensure accessibility and functionality on small screens as well as larger ones. Users have a smooth experience regardless of the device they’re using, from smartphones to tablets and desktops.
We created flexible layouts that adapt seamlessly to both portrait and landscape orientations, giving users the option to choose the orientation that works best for them.
Forms are often a critical interaction point in any app, so we paid special attention to making them accessible:
We followed best practices to design name fields inclusively:
By integrating these accessibility features, we’ve created a platform that aims to be both inclusive and engaging for aspiring home visitors. While we understand that accessibility is a continuous process, we’re proud of the strides we’ve made to ensure a more user-friendly experience for everyone.