Color

#3bc43f

#3bc43f
hex#3bc43f
rgbrgb(59, 196, 63)
hslhsl(122, 54%, 50%)
oklchoklch(0.721 0.208 143.4)
Closest name: Battletoad (#11cc55)Relative luminance 0.4077

Colors that go with #3bc43f

Blue, Charcoal and Royal 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 →

#c43bc0

#7bc43b · #3bc484

#3f3bc4 · #c43f3b

Split-complementary

Open in tool →

#843bc4 · #c43b7b

#3b7bc4 · #c43bc0 · #c4843b

Contrast

#3bc43f as textRatioAAAA largeAAAFix
Aaon white
2.29:1failfailfail
  • AA: use #28862b as the text (4.63:1)
  • AAA: use #1e6621 as the text (7.05:1)
  • AA: or shift the background to #404040 (4.52:1)
  • AAA: or shift the background to #212121 (7.02:1)
Aaon black
9.15:1passpasspassPasses 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 #3bc43f 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 #3bc43f
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 #3bc43f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bc43f-a2bea6-9e4edf-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