Color

#3fac0c

#3fac0c
hex#3fac0c
rgbrgb(63, 172, 12)
hslhsl(101, 87%, 36%)
oklchoklch(0.655 0.204 139.2)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.3059

Colors that go with #3fac0c

Taupe, Medium Orchid and Medium Purple 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 →

#790cac

#8eac0c · #0cac29

#0c3fac · #ac0c3f

Split-complementary

Open in tool →

#290cac · #ac0c8e

#0c8eac · #790cac · #ac290c

Contrast

#3fac0c as textRatioAAAA largeAAAFix
Aaon white
2.95:1failfailfail
  • AA: use #318609 as the text (4.62:1)
  • AAA: use #246407 as the text (7.24:1)
  • AA: or shift the background to #2e2e2e (4.6:1)
  • AAA: or shift the background to #000000 (7.12:1)
Aaon black
7.12:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fac0c as the background.

Brands using this color

mcpConnect your agent — build around #3fac0c
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 #3fac0c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fac0c-a7bea2-6b4edf-1f2d21-eff1e9?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