@inproceedings{maurya-etal-2026-colorism,
    title = "Colorism in Multimodal {AI}: An Empirical Exploration of Socioeconomic Linguistic Bias in Text-to-Image Generation",
    author = "Maurya, Raj Gaurav  and
      Shukla, Vaibhav  and
      Panat, Sreedath",
    editor = "Baez Santamaria, Selene  and
      Somayajula, Sai Ashish  and
      Yamaguchi, Atsuki",
    booktitle = "Proceedings of the 19th Conference of the {E}uropean Chapter of the {A}ssociation for {C}omputational {L}inguistics (Volume 4: Student Research Workshop)",
    month = mar,
    year = "2026",
    address = "Rabat, Morocco",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-eacl/2026.eacl-srw.69/",
    pages = "937--951",
    ISBN = "979-8-89176-383-8",
    abstract = "The recent rapid real-world adoption of vision-language models (VLMs) raises concerns about how social biases encoded in language may propagate into visual generation. In this work, we examine whether socioeconomic stereotypes, expressed through occupation and income-related linguistic cues in prompts, systematically influences skin-tone representations in text-to-image (T2I) generation, with a focus on colorism as a visual marker of social inequality. We first benchmark 3 small VLMs and 60 human annotators on the Monk Skin Tone (MST) scale using the MST-E dataset. We then conduct a large-scale T2I generation study in which we systematically vary the linguistic framing of income in prompts describing 210 occupations, producing over 2,500 portraits across 3 large VLMs. The skin-tone audit of the portraits by the best-performing annotator (GPT-5 mini) reveals strong color bias: high-income prompts consistently produce lighter-skinned faces, with prompt constraints only modestly attenuating this effect. Bias magnitude varies across generators, with GPT-5 Image-mini and Gemini-2.5 Flash-Image exhibiting more pronounced shifts in MST than Grok-2 Image. Our findings indicate that VLMs encode and amplify ethnoracialized socioeconomic stereotypes in language-conditioned image generation, underscoring the need for cross-modal fairness audits and human-centered evaluations."
}