Color

#0f414d

#0f414d
hex#0f414d
rgbrgb(15, 65, 77)
hslhsl(192, 67%, 18%)
oklchoklch(0.349 0.055 217.5)
Closest name: Cold and Dark (#154250)Relative luminance 0.0442

Colors that go with #0f414d

Crimson, Steel Blue and Teal 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 →

#4d1b0f

#0f4d3a · #0f224d

#4d0f40 · #404d0f

Split-complementary

Open in tool →

#4d0f22 · #4d3a0f

#3a0f4d · #4d1b0f · #224d0f

Contrast

#0f414d as textRatioAAAA largeAAAFix
Aaon white
11.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #1e8199 as the text (4.66:1)
  • AAA: use #27a4c4 as the text (7.19:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0f414d as the background.

Brands using this color

Fonts for this mood

#0f414d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f414d
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 #0f414d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f414d-a2b5be-df4e77-1f242d-e9f1ef?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