{{Rsnum
|rsid=4778137
|Gene=OCA2
|Chromosome=15
|position=28082689
|Orientation=plus
|GMAF=0.4674
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
|Gene_s=OCA2
}}{{ population diversity
| geno1=(C;C)
| geno2=(C;G)
| geno3=(G;G)
| CEU | 46.0 | 52.4 | 1.6
| HCB | 4.4 | 24.4 | 71.1
| JPT | 6.8 | 27.3 | 65.9
| YRI | 12.9 | 48.4 | 38.7
| ASW | 0.0 | 0.0 | 0.0
| CHB | 4.4 | 24.4 | 71.1
| CHD | 0.0 | 0.0 | 0.0
| GIH | 0.0 | 0.0 | 0.0
| LWK | 0.0 | 0.0 | 0.0
| MEX | 0.0 | 0.0 | 0.0
| MKK | 0.0 | 0.0 | 0.0
| TSI | 0.0 | 0.0 | 0.0
| HapMapRevision=28
}}{{PMID Auto
|PMID=20308648
|Title=Association Between a Germline OCA2 Polymorphism at Chromosome 15q13.1 and Estrogen Receptor-Negative Breast Cancer Survival
|OA=1
}}

{{PMID|17236130|OA=1
}} A three-single-nucleotide polymorphism haplotype in intron 1 of OCA2 explains most human eye-color variation.

{{PMID|18252221|OA=1
}} Three genome-wide association studies and a linkage analysis identify HERC2 as a human iris color gene.

{{on chip | 23andMe v1}}
{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}