Color

#3fa02c

#3fa02c
hex#3fa02c
rgbrgb(63, 160, 44)
hslhsl(110, 57%, 40%)
oklchoklch(0.625 0.177 140.7)
Closest name: Grass Is Greener (#3f9b0b)Relative luminance 0.2638

Colors that go with #3fa02c

Charcoal, Crimson 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 →

#8d2ca0

#79a02c · #2ca053

#2c3fa0 · #a02c3f

Split-complementary

Open in tool →

#532ca0 · #a02c79

#2c79a0 · #8d2ca0 · #a0532c

Contrast

#3fa02c as textRatioAAAA largeAAAFix
Aaon white
3.35:1failpassfail
  • AA: use #348424 as the text (4.7:1)
  • AAA: use #28641b as the text (7.17:1)
  • AA: or shift the background to #262626 (4.52:1)
Aaon black
6.28:1passpassfail
  • AAA: use #44ac2f as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fa02c 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 #3fa02c
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 #3fa02c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fa02c-a3bea2-814edf-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