Color

#2fca51

#2fca51
hex#2fca51
rgbrgb(47, 202, 81)
hslhsl(133, 62%, 49%)
oklchoklch(0.736 0.206 146.4)
Closest name: Battletoad (#11cc55)Relative luminance 0.4344

Colors that go with #2fca51

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 →

#ca2fa9

#5bca2f · #2fca9f

#512fca · #ca512f

Split-complementary

Open in tool →

#9f2fca · #ca2f5b

#2f5bca · #ca2fa9 · #ca9f2f

Contrast

#2fca51 as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #208837 as the text (4.53:1)
  • AAA: use #176328 as the text (7.36:1)
  • AA: or shift the background to #424242 (4.64:1)
  • AAA: or shift the background to #242424 (7.16:1)
Aaon black
9.69:1passpasspassPasses 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 #2fca51 as the background.

Brands using this color

mcpConnect your agent — build around #2fca51
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 #2fca51 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2fca51-a2beab-b84edf-1f2d28-ebf1e9?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