Color

#3bb41d

#3bb41d
hex#3bb41d
rgbrgb(59, 180, 29)
hslhsl(108, 72%, 41%)
oklchoklch(0.676 0.209 140.6)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.3366

Colors that go with #3bb41d

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 →

#961db4

#87b41d · #1db44a

#1d3bb4 · #b41d3b

Split-complementary

Open in tool →

#4a1db4 · #b41d87

#1d87b4 · #961db4 · #b44a1d

Contrast

#3bb41d as textRatioAAAA largeAAAFix
Aaon white
2.72:1failfailfail
  • AA: use #2d8816 as the text (4.52:1)
  • AAA: use #216510 as the text (7.16:1)
  • AA: or shift the background to #333333 (4.65:1)
  • AAA: or shift the background to #0f0f0f (7.06:1)
Aaon black
7.73:1passpasspassPasses 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 #3bb41d 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 #3bb41d
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 #3bb41d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb41d-a4bea2-7c4edf-1f2d23-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