Color

#1fb275

#1fb275
hex#1fb275
rgbrgb(31, 178, 117)
hslhsl(155, 70%, 41%)
oklchoklch(0.676 0.148 159)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3342

Colors that go with #1fb275

Charcoal, Midnight 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 →

#b21f5c

#1fb22c · #1fa6b2

#751fb2 · #b2751f

Split-complementary

Open in tool →

#b21fa6 · #b22c1f

#2c1fb2 · #b21f5c · #a6b21f

Contrast

#1fb275 as textRatioAAAA largeAAAFix
Aaon white
2.73:1failfailfail
  • AA: use #188658 as the text (4.58:1)
  • AAA: use #126441 as the text (7.18:1)
  • AA: or shift the background to #333333 (4.62:1)
  • AAA: or shift the background to #0f0f0f (7.01:1)
Aaon black
7.68:1passpasspassPasses 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 #1fb275 as the background.

Brands using this color

mcpConnect your agent — build around #1fb275
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 #1fb275 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fb275-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