Color

#3fab30

#3fab30
hex#3fab30
rgbrgb(63, 171, 48)
hslhsl(113, 56%, 43%)
oklchoklch(0.655 0.188 141.4)
Closest name: Botanical Garden (#44aa11)Relative luminance 0.304

Colors that go with #3fab30

Blue, 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 →

#9d30ab

#7cab30 · #30ab5f

#303fab · #ab303f

Split-complementary

Open in tool →

#5f30ab · #ab307c

#307cab · #9d30ab · #ab5f30

Contrast

#3fab30 as textRatioAAAA largeAAAFix
Aaon white
2.97:1failfailfail
  • AA: use #318726 as the text (4.54:1)
  • AAA: use #24631c as the text (7.3:1)
  • AA: or shift the background to #2e2e2e (4.58:1)
  • AAA: or shift the background to #000000 (7.08:1)
Aaon black
7.08:1passpasspassPasses 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 #3fab30 as the background.

Brands using this color

mcpConnect your agent — build around #3fab30
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 #3fab30 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fab30-a2bea2-884edf-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