Color

#3f9130

#3f9130
hex#3f9130
rgbrgb(63, 145, 48)
hslhsl(111, 50%, 38%)
oklchoklch(0.585 0.155 140.7)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.2152

Colors that go with #3f9130

Charcoal, Crimson and Royal 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 →

#833091

#6f9130 · #309152

#303f91 · #91303f

Split-complementary

Open in tool →

#523091 · #91306f

#306f91 · #833091 · #915230

Contrast

#3f9130 as textRatioAAAA largeAAAFix
Aaon white
3.96:1failpassfail
  • AA: use #3a862d as the text (4.54:1)
  • AAA: use #2b6321 as the text (7.22:1)
  • AA: or shift the background to #171717 (4.53:1)
Aaon black
5.3:1passpassfail
  • AAA: use #4bac39 as the text (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f9130 as the background.

Brands using this color

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

mcpConnect your agent — build around #3f9130
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 #3f9130 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f9130-a3bea2-834edf-1f2d23-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