Color

#3f8a33

#3f8a33
hex#3f8a33
rgbrgb(63, 138, 51)
hslhsl(112, 46%, 37%)
oklchoklch(0.566 0.144 141)
Closest name: Overgrown Mausoleum (#448833)Relative luminance 0.1947

Colors that go with #3f8a33

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 →

#7e338a

#6a8a33 · #338a53

#333f8a · #8a333f

Split-complementary

Open in tool →

#53338a · #8a336a

#336a8a · #7e338a · #8a5333

Contrast

#3f8a33 as textRatioAAAA largeAAAFix
Aaon white
4.29:1failpassfail
  • AA: use #3d8632 as the text (4.51:1)
  • AAA: use #2c6124 as the text (7.39:1)
  • AA: or shift the background to #0d0d0d (4.53:1)
Aaon black
4.89:1passpassfail
  • AAA: use #4eab3f as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3f8a33 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 #3f8a33
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 #3f8a33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3f8a33-a2bea2-864edf-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