Color

#3bf127

#3bf127
hex#3bf127
rgbrgb(59, 241, 39)
hslhsl(114, 88%, 55%)
oklchoklch(0.837 0.268 141.8)
Closest name: Becquerel (#4bec13)Relative luminance 0.6399

Colors that go with #3bf127

Deep Sky Blue, Violet and Hot Pink 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 →

#dd27f1

#a0f127 · #27f178

#273bf1 · #f1273b

Split-complementary

Open in tool →

#7827f1 · #f127a0

#27a0f1 · #dd27f1 · #f17827

Contrast

#3bf127 as textRatioAAAA largeAAAFix
Aaon white
1.52:1failfailfail
  • AA: use #158609 as the text (4.72:1)
  • AAA: use #106506 as the text (7.28:1)
  • AA: or shift the background to #595959 (4.6:1)
  • AAA: or shift the background to #3d3d3d (7.14:1)
Aaon black
13.8:1passpasspassPasses 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 #3bf127 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 #3bf127
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 #3bf127 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf127-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