Color

#3fe49f

#3fe49f
hex#3fe49f
rgbrgb(63, 228, 159)
hslhsl(155, 75%, 57%)
oklchoklch(0.819 0.166 160.5)
Closest name: Aquamarine (#2ee8bb)Relative luminance 0.5905

Colors that go with #3fe49f

Mustard Yellow, 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 →

#e43f84

#3fe44d · #3fd6e4

#9f3fe4 · #e49f3f

Split-complementary

Open in tool →

#e43fd6 · #e44d3f

#4d3fe4 · #e43f84 · #d6e43f

Contrast

#3fe49f as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #138656 as the text (4.59:1)
  • AAA: use #0e623f as the text (7.4:1)
  • AA: or shift the background to #545454 (4.62:1)
  • AAA: or shift the background to #383838 (7.15:1)
Aaon black
12.81:1passpasspassPasses 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 #3fe49f 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 #3fe49f
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 #3fe49f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fe49f-a2beb6-d459c8-1f2d2d-e9f1ea?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