Color

#3bf745

#3bf745
hex#3bf745
rgbrgb(59, 247, 69)
hslhsl(123, 92%, 60%)
oklchoklch(0.854 0.26 143.4)
Closest name: Cathode Green (#00ff55)Relative luminance 0.6788

Colors that go with #3bf745

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 →

#f73bed

#90f73b · #3bf7a2

#453bf7 · #f7453b

Split-complementary

Open in tool →

#a23bf7 · #f73b90

#3b90f7 · #f73bed · #f7a23b

Contrast

#3bf745 as textRatioAAAA largeAAAFix
Aaon white
1.44:1failfailfail
  • AA: use #06890c as the text (4.57:1)
  • AAA: use #046709 as the text (7.12:1)
  • AA: or shift the background to #5e5e5e (4.5:1)
  • AAA: or shift the background to #404040 (7.2:1)
Aaon black
14.58:1passpasspassPasses 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 #3bf745 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 #3bf745
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 #3bf745 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3bf745-a2bea6-a04edf-1f2d26-edf1e9?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