Legal design combines proactive law, human-centered design, and technology, embracing human-centricity and transparency as its core. With this paper, we try to shed light on the usability of legal design practices on the compliance and privacy protection regarding the AI Act by analyzing related provisions, where these design practices can be used in order to strengthen privacy by design. By exploring how legal design principles can enhance the implementation of privacy safeguards under the AI Act, including AI literacy, informed consent, meaningful transparency, and practical rights assertion for individuals, this paper contributes to enhancing the human-centric AI policy frameworks and contributes to privacy by design principles.