Color

#3fb125

#3fb125
hex#3fb125
rgbrgb(63, 177, 37)
hslhsl(109, 65%, 42%)
oklchoklch(0.67 0.201 140.6)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.3263

Colors that go with #3fb125

Royal Blue, Taupe and Medium Orchid 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 →

#9725b1

#85b125 · #25b152

#253fb1 · #b1253f

Split-complementary

Open in tool →

#5225b1 · #b12585

#2585b1 · #9725b1 · #b15225

Contrast

#3fb125 as textRatioAAAA largeAAAFix
Aaon white
2.79:1failfailfail
  • AA: use #30871d as the text (4.56:1)
  • AAA: use #246515 as the text (7.13:1)
  • AA: or shift the background to #333333 (4.53:1)
  • AAA: or shift the background to #0a0a0a (7.1:1)
Aaon black
7.53:1passpasspassPasses 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 #3fb125 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 #3fb125
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 #3fb125 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fb125-a4bea2-7e4edf-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