Color

#3bf757

#3bf757
hex#3bf757
rgbrgb(59, 247, 87)
hslhsl(129, 92%, 60%)
oklchoklch(0.855 0.249 144.9)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6814

Colors that go with #3bf757

Violet, Deep Sky Blue 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 →

#f73bdb

#7df73b · #3bf7b5

#573bf7 · #f7573b

Split-complementary

Open in tool →

#b53bf7 · #f73b7d

#3b7df7 · #f73bdb · #f7b53b

Contrast

#3bf757 as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #068919 as the text (4.57:1)
  • AAA: use #046713 as the text (7.11:1)
  • AA: or shift the background to #5e5e5e (4.52:1)
  • AAA: or shift the background to #424242 (7:1)
Aaon black
14.63:1passpasspassPasses 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 #3bf757 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 #3bf757
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 #3bf757 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf757-a2bea9-ae4edf-1f2d27-ecf1e9?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