Color

#3b6837

#3b6837
hex#3b6837
rgbrgb(59, 104, 55)
hslhsl(115, 31%, 31%)
oklchoklch(0.472 0.091 142.3)
Closest name: Greenhouse (#3e6334)Relative luminance 0.1111

Colors that go with #3b6837

Charcoal, Royal Blue and Blue 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 →

#633768

#536837 · #37684b

#373b68 · #68373b

Split-complementary

Open in tool →

#4b3768 · #683753

#375368 · #633768 · #684b37

Contrast

#3b6837 as textRatioAAAA largeAAAFix
Aaon white
6.52:1passpassfail
  • AAA: use #376133 as the text (7.19:1)
Aaon black
3.22:1failpassfail
  • AA: use #4a8245 as the text (4.57:1)
  • AAA: use #5fa758 as the text (7.15:1)
  • AA: or shift the background to #d9d9d9 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b6837 as the background.

Brands using this color

mcpConnect your agent — build around #3b6837
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 #3b6837 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b6837-a2bea3-8d4edf-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