Color

#3fc71a

#3fc71a
hex#3fc71a
rgbrgb(63, 199, 26)
hslhsl(107, 77%, 44%)
oklchoklch(0.728 0.228 140.5)
Closest name: Candy Green (#33cc00)Relative luminance 0.4198

Colors that go with #3fc71a

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 →

#a11ac7

#96c71a · #1ac74b

#1a3fc7 · #c71a3f

Split-complementary

Open in tool →

#4b1ac7 · #c71a96

#1a96c7 · #a11ac7 · #c74b1a

Contrast

#3fc71a as textRatioAAAA largeAAAFix
Aaon white
2.24:1failfailfail
  • AA: use #2b8712 as the text (4.59:1)
  • AAA: use #20630d as the text (7.36:1)
  • AA: or shift the background to #404040 (4.64:1)
  • AAA: or shift the background to #212121 (7.2:1)
Aaon black
9.4:1passpasspassPasses 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 #3fc71a 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 #3fc71a
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 #3fc71a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fc71a-a5bea2-7a4edf-1f2d22-eff1e9?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