Color

#3bb041

#3bb041
hex#3bb041
rgbrgb(59, 176, 65)
hslhsl(123, 50%, 46%)
oklchoklch(0.668 0.183 143.9)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.3236

Colors that go with #3bb041

Charcoal, Royal 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 →

#b03baa

#6fb03b · #3bb07b

#413bb0 · #b0413b

Split-complementary

Open in tool →

#7b3bb0 · #b03b6f

#3b6fb0 · #b03baa · #b07b3b

Contrast

#3bb041 as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #2d8631 as the text (4.6:1)
  • AAA: use #216324 as the text (7.3:1)
  • AA: or shift the background to #303030 (4.7:1)
  • AAA: or shift the background to #0a0a0a (7.04:1)
Aaon black
7.47:1passpasspassPasses 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 #3bb041 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 #3bb041
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 #3bb041 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bb041-a2bea6-a04edf-1f2d26-edf1e9?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