Rosco Roscolux #369 Tahitian Blue Lighting Gel

The Rosco Roscolux #369 Tahitian Blue is a color gel filter designed for stage, film, and studio lighting applications. It produces a deep, saturated blue with a subtle green shift that distinguishes it from the more purely blue Roscolux #69 Brilliant Blue. This teal-leaning character makes it particularly effective for tropical night scenes, underwater effects, moody atmospheric washes, and any lighting design that calls for a blue tone with warmth and depth rather than a stark, cold hue.

The gel comes in the standard 20 x 24-inch Roscolux sheet size, which can be cut with scissors or a blade to fit any gel frame, barn door clip, or custom holder. At 22% transmission, it absorbs a significant portion of light output, so plan fixture brightness accordingly — it pairs well with higher-wattage instruments where deep saturation is the priority over raw output. Made from Roscolux's polycarbonate-based material, the filter offers good heat resistance for use with conventional tungsten and halogen fixtures, though all gel filters will eventually fade under sustained high-temperature exposure. For lighting designers working with physical gels, the #369 Tahitian Blue fills a specific niche in the color palette that is difficult to match by mixing other filters.