Sepia
A warm brown monochrome treatment that makes an image resemble an antique photographic print.
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What it is
Sepia turns an image into a warm brown monochrome, with deep brown shadows, tan midtones, and cream highlights. The look recalls older photographic prints that were sulfide-toned, converting the metallic silver image to brown silver sulfide that resisted fading.
Best uses include an antique photographic cue or one restrained warm treatment across mixed source photos. A sepia color matrix or a brown-to-cream gradient map gives more control than a flat brown overlay.
Gotcha: sepia does not mean orange. Keep the shadows neutral brown and protect highlight detail; too much saturation or lifted contrast turns the image into a muddy orange wash.
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Convert this image to sepia with a luminance-driven gradient map: deep brown in the shadows, muted tan in the midtones, and warm cream in the highlights. Preserve the original luminance contrast and fine detail, with no orange cast or added distress texture.