Color

#0f333d

#0f333d
hex#0f333d
rgbrgb(15, 51, 61)
hslhsl(193, 61%, 15%)
oklchoklch(0.3 0.044 219.5)
Closest name: Elite Teal (#133337)Relative luminance 0.0281

Colors that go with #0f333d

Crimson, Rust and Sienna 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.

Real palettes that use #0f333d

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3e190f

#0f3e30 · #0f1c3e

#3e0f33 · #333e0f

Split-complementary

Open in tool →

#3e0f1c · #3e300f

#300f3e · #3e190f · #1c3e0f

Contrast

#0f333d as textRatioAAAA largeAAAFix
Aaon white
13.45:1passpasspassPasses AAA — no fix needed.
Aaon black
1.56:1failfailfail
  • AA: use #257f98 as the text (4.57:1)
  • AAA: use #30a5c5 as the text (7.31:1)
  • AA: or shift the background to #969696 (4.55:1)
  • AAA: or shift the background to #bdbdbd (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 #0f333d as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#0f333d reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0f333d
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 #0f333d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0f333d-a2b5be-df4e75-1f242d-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