Color

#3f6940

#3f6940
hex#3f6940
rgbrgb(63, 105, 64)
hslhsl(121, 25%, 33%)
oklchoklch(0.478 0.08 144.7)
Closest name: Forest Serenade (#336644)Relative luminance 0.1153

Colors that go with #3f6940

Charcoal, Royal Blue and Champagne 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 →

#693f68

#53693f · #3f6955

#403f69 · #69403f

Split-complementary

Open in tool →

#553f69 · #693f53

#3f5369 · #693f68 · #69553f

Contrast

#3f6940 as textRatioAAAA largeAAAFix
Aaon white
6.35:1passpassfail
  • AAA: use #39603a as the text (7.22:1)
Aaon black
3.31:1failpassfail
  • AA: use #4d804d as the text (4.51:1)
  • AAA: use #69a56a as the text (7.19:1)
  • AA: or shift the background to #d9d9d9 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f6940 as the background.

Brands using this color

mcpConnect your agent — build around #3f6940
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 #3f6940 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f6940-a2bea6-9b4edf-1f2d26-edf1e9?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