Color

#3fa61c

#3fa61c
hex#3fa61c
rgbrgb(63, 166, 28)
hslhsl(105, 71%, 38%)
oklchoklch(0.64 0.192 139.6)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.2841

Colors that go with #3fa61c

Blue, Dodger Blue and Taupe 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 →

#831ca6

#83a61c · #1ca63f

#1c3fa6 · #a61c3f

Split-complementary

Open in tool →

#3f1ca6 · #a61c83

#1c83a6 · #831ca6 · #a63f1c

Contrast

#3fa61c as textRatioAAAA largeAAAFix
Aaon white
3.14:1failpassfail
  • AA: use #338717 as the text (4.55:1)
  • AAA: use #266411 as the text (7.21:1)
  • AA: or shift the background to #2b2b2b (4.51:1)
Aaon black
6.68:1passpassfail
  • AAA: use #42ae1e as the text (7.3:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fa61c as the background.

Brands using this color

mcpConnect your agent — build around #3fa61c
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 #3fa61c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa61c-a6bea2-754edf-1f2d22-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