## 3 Background
* Choice of colors:
* UX/UI: Colors are essential in design, creating a visually appealing experience and guiding users through content. This concept is based on color psychology, which examines how different colors can evoke specific emotions and behaviors. * Cybersecurity: Colors can be utilized to indicate various security levels, such as using red for warnings and green for safe actions. This helps users quickly grasp the security status of an app or website. Integrating these principles not only improves user experience but also contributes to creating a safer and more protected digital environment. Moreover, ensuring that all interactive elements are keyboard navigable provides equal access for users operating via keyboards or alternative input devices. To address other common vulnerabilities like cross-site request forgery (CSRF) [43], cross-site scripting (XSS) and SQL injection, secure coding standards should be included in the development process, as well as input validation and sanitization to prevent and block attacks while keeping input mechanisms accessible. When it comes to the implementation of digital technologies, authentication [44] and authorization are considered as the main mechanisms to guard against cyberattacks; therefore, multi-factor authentication (MFA) [45] must be set up in a way that is accessible to users with disabilities. Data encryption is essential for safeguarding safety and protecting personal information. Leveraging open-source technologies in the design and development of accessible, cyber-secure web interfaces offers several key advantages. First, it promotes enhanced transparency and security: by making the source code publicly accessible, open-source communities can collectively review, audit, and improve the codebase. This process not only helps to uncover and patch vulnerabilities more rapidly but also encourages best coding practices from the outset. Furthermore, having a broad community contributing to and inspecting the code helps to reduce the likelihood of hidden backdoors or other security flaws. Second, open-source solutions are typically designed with compliance and standards in mind, facilitating the adherence to established guidelines such as the Web Content Accessibility Guidelines (WCAG) and various cybersecurity protocols. Many open-source frameworks and libraries provide built-in components that already follow recognized accessibility and security standards (for instance, semantic HTML elements or pre-configured HTTPS modules), thus saving development time while ensuring consistent compliance. Additionally, because these solutions are collectively maintained, updates related to new regulatory mandates often emerge faster than in closed-source systems. Finally, open-source technologies bring cost-effectiveness and flexibility to web interface development. They are generally license-free, making them financially appealing to both small organizations and large enterprises. Due to the modular nature of open-source software, teams can adopt only the features that fit their needs while retaining the option to customize or extend functionalities as the application evolves. This adaptability not only helps to optimize resource usage and reduce costs but also fosters an environment of continuous innovation, as developers worldwide can contribute enhancements to the shared code. By combining the web design with cybersecurity tools, one can create websites that not only have a nice web design but also protect users and their data. Moreover, design can significantly contribute to improving cybersecurity in the following ways:  
* Security-oriented design: Using security principles early in the design phase of a website can help prevent many security problems. For example, ensuring that sensitive data are encrypted or that the site uses HTTPS can help protect user data. * Authentication and authorization: An efficient design can facilitate the implementation of tools for authorization and authentication, such as two-step authentication.