Color

#3f673c

#3f673c
hex#3f673c
rgbrgb(63, 103, 60)
hslhsl(116, 26%, 32%)
oklchoklch(0.472 0.081 142.6)
Closest name: Greenhouse (#3e6334)Relative luminance 0.1108

Colors that go with #3f673c

Charcoal, Copper and Crimson 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 →

#643c67

#54673c · #3c674f

#3c3f67 · #673c3f

Split-complementary

Open in tool →

#4f3c67 · #673c54

#3c5467 · #643c67 · #674f3c

Contrast

#3f673c as textRatioAAAA largeAAAFix
Aaon white
6.53:1passpassfail
  • AAA: use #3b6039 as the text (7.2:1)
Aaon black
3.22:1failpassfail
  • AA: use #4f814b as the text (4.57:1)
  • AAA: use #69a465 as the text (7.1:1)
  • AA: or shift the background to #d9d9d9 (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f673c as the background.

Brands using this color

mcpConnect your agent — build around #3f673c
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 #3f673c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f673c-a2bea3-8f4edf-1f2d24-eef1e9?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