Despite decreased susceptibility, darker skin individuals who develop melanoma have worse survival. This disparity in melanoma mortality is the largest for any cancer, and partly driven by a lack of patient education materials targeted to darker skin populations in whom acral lentiginous melanoma (ALM) is the most common subtype. To address this communication disparity, the current study reports a multi-phase design process that leverages crowdsourcing and message testing to develop ALM-focused patient education materials for darker skin populations. Crowdsourced design was utilized to develop a pool of designs (phase 1), the pool was narrowed and thematically analyzed (phase 2), and select designs were evaluated via a message experiment (N = 1877). For darker skin populations, designs that depicted people enhanced knowledge of ALM through message memorability. The current study engages melanoma disparities by providing ALM patient education materials for darker skin populations vetted via a multi-phase process.