Bosporus

SW 6503 · Sherwin-Williams

Bosporus SW 6503 as a flat swatch, not a painted room

Sherwin-Williams

Bosporus

SW 6503

Hex code

#015D75

Light reflectance value (LRV)

8.8Very dark, close to black on a wall

0 black100 white

Undertone

Clear blue, a cool color

Color family: Blue
Sold for: Interior and exterior

Try it on your walls Get a sample

Sherwin-Williams Bosporus SW 6503 is a very dark blue paint color, a clear color rather than a neutral, with an LRV of 9, close to black on a wall.

Updated August 22, 2026

Is Bosporus warm or cool? Undertones by the numbers

leans blue

Undertone

Clear blue

graysaturated

A clear color, not a neutral.

Try Bosporus on your own walls

Upload a photo of your room, or the outside of your house, and TryMyHome renders Bosporus onto the walls so you can judge it in your light, with your floors and furniture. Your first five renders are free.

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Get a sample before you paint

Use the visualizer to narrow your shortlist, then confirm the finalist on your actual wall. A peel-and-stick sample of Bosporus, checked in morning and evening light, is the last step before a gallon.