Color

#3f092d

#3f092d
hex#3f092d
rgbrgb(63, 9, 45)
hslhsl(320, 75%, 14%)
oklchoklch(0.256 0.092 344.8)
Closest name: Dark Sanctuary (#3f012c)Relative luminance 0.0144

Colors that go with #3f092d

Charcoal, Crimson and Sea Green 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 →

#093e1b

#36093e · #3e0912

#2d3e09 · #092d3e

Split-complementary

Open in tool →

#123e09 · #093e36

#3e3609 · #093e1b · #09123e

Contrast

#3f092d as textRatioAAAA largeAAAFix
Aaon white
16.3:1passpasspassPasses AAA — no fix needed.
Aaon black
1.29:1failfailfail
  • AA: use #d61f99 as the text (4.52:1)
  • AAA: use #e967be as the text (7.15:1)
  • AA: or shift the background to #878787 (4.54:1)
  • AAA: or shift the background to #ababab (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f092d as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#3f092d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f092d
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 #3f092d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f092d-c19fb2-72cb62-2d1f23-f0e9f1?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