Color

#0f396c

#0f396c
hex#0f396c
rgbrgb(15, 57, 108)
hslhsl(213, 76%, 24%)
oklchoklch(0.347 0.1 255.7)
Closest name: Atlantic Navy (#13336f)Relative luminance 0.0411

Colors that go with #0f396c

Crimson, Teal and Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#6c420f

#0f676c · #130f6c

#6c0f39 · #396c0f

Split-complementary

Open in tool →

#6c130f · #676c0f

#6c0f67 · #6c420f · #0f6c13

Contrast

#0f396c as textRatioAAAA largeAAAFix
Aaon white
11.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.82:1failfailfail
  • AA: use #1e73dc as the text (4.54:1)
  • AAA: use #5999e8 as the text (7.15:1)
  • AA: or shift the background to #a3a3a3 (4.57:1)
  • AAA: or shift the background to #cccccc (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f396c as the background.

Brands using this color

Fonts for this mood

#0f396c reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f396c
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #0f396c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f396c-9ca9c4-df584e-1f202d-e9f0f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md