Color

#3f631c

#3f631c
hex#3f631c
rgbrgb(63, 99, 28)
hslhsl(90, 56%, 25%)
oklchoklch(0.456 0.107 132.4)
Closest name: Greenhouse (#3e6334)Relative luminance 0.1006

Colors that go with #3f631c

Charcoal, Crimson and Denim 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 →

#401c63

#63631c · #1c631c

#1c4063 · #631c40

Split-complementary

Open in tool →

#1c1c63 · #631c63

#1c6363 · #401c63 · #631c1c

Contrast

#3f631c as textRatioAAAA largeAAAFix
Aaon white
6.97:1passpassfail
  • AAA: use #3d5f1b as the text (7.37:1)
Aaon black
3.01:1failpassfail
  • AA: use #548325 as the text (4.65:1)
  • AAA: use #6ba72f as the text (7.19:1)
  • AA: or shift the background to #d1d1d1 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f631c 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

#3f631c reads as dark, luxury, bold. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3f631c
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 #3f631c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f631c-adbea2-514edf-202d1f-f1f1e9?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