Color

#3fdc2e

#3fdc2e
hex#3fdc2e
rgbrgb(63, 220, 46)
hslhsl(114, 71%, 52%)
oklchoklch(0.783 0.243 141.8)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5244

Colors that go with #3fdc2e

Deep Sky Blue, 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 →

#ca2edc

#96dc2e · #2edc73

#2e3fdc · #dc2e3f

Split-complementary

Open in tool →

#732edc · #dc2e96

#2e96dc · #ca2edc · #dc732e

Contrast

#3fdc2e as textRatioAAAA largeAAAFix
Aaon white
1.83:1failfailfail
  • AA: use #228717 as the text (4.62:1)
  • AAA: use #196411 as the text (7.31:1)
  • AA: or shift the background to #4d4d4d (4.62:1)
  • AAA: or shift the background to #303030 (7.22:1)
Aaon black
11.49:1passpasspassPasses 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 #3fdc2e 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 #3fdc2e
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 #3fdc2e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fdc2e-a2bea2-8a4edf-1f2d24-eef1e9?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