Color

#3fcf4e

#3fcf4e
hex#3fcf4e
rgbrgb(63, 207, 78)
hslhsl(126, 60%, 53%)
oklchoklch(0.752 0.209 144.6)
Closest name: Battletoad (#11cc55)Relative luminance 0.4623

Colors that go with #3fcf4e

Charcoal, Taupe and Violet 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 →

#cf3fc1

#79cf3f · #3fcf96

#4e3fcf · #cf4e3f

Split-complementary

Open in tool →

#963fcf · #cf3f79

#3f79cf · #cf3fc1 · #cf963f

Contrast

#3fcf4e as textRatioAAAA largeAAAFix
Aaon white
2.05:1failfailfail
  • AA: use #22872c as the text (4.6:1)
  • AAA: use #1a6621 as the text (7.08:1)
  • AA: or shift the background to #474747 (4.53:1)
  • AAA: or shift the background to #292929 (7.1:1)
Aaon black
10.25:1passpasspassPasses 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 #3fcf4e 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 #3fcf4e
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 #3fcf4e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fcf4e-a2bea8-a74edf-1f2d27-ecf1e9?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