Color

#1fd181

#1fd181
hex#1fd181
rgbrgb(31, 209, 129)
hslhsl(153, 74%, 47%)
oklchoklch(0.76 0.176 156.5)
Closest name: Envy’s Love (#2dd78d)Relative luminance 0.4748

Colors that go with #1fd181

Charcoal, Deep Sky Blue and Mustard Yellow 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 →

#d11f6f

#1fd128 · #1fc8d1

#811fd1 · #d1811f

Split-complementary

Open in tool →

#d11fc8 · #d1281f

#281fd1 · #d11f6f · #c8d11f

Contrast

#1fd181 as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #148552 as the text (4.66:1)
  • AAA: use #0f663f as the text (7.02:1)
  • AA: or shift the background to #474747 (4.64:1)
  • AAA: or shift the background to #2b2b2b (7.08:1)
Aaon black
10.5:1passpasspassPasses 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 #1fd181 as the background.

Brands using this color

mcpConnect your agent — build around #1fd181
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 #1fd181 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fd181-a2beb5-d459cc-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