Herein, 100% meta-aramid woven fabric was dyed with three vat dyes and their dyeing and fastness properties were investigated. Color yields of the vat dyes on the meta-aramid fabric were dependent on dyeing temperature, amount of reducing agent, and amount of salt. Dyeing behavior of the vat dye on the meta-aramid fiber was very similar to that on cellulose fibers. It was found that the meta-aramid fabric dyed with 1% owf of Indanthren Black 5589 satisfied the tolerance of the NIR reflectance spectrum of charcoal color in the Korean military standard. Wash and perspiration fastness was generally good, while rubbing fastness was moderate and light fastness was unsatisfactory.