Color

#43b66c

#43b66c
hex#43b66c
rgbrgb(67, 182, 108)
hslhsl(141, 46%, 49%)
oklchoklch(0.693 0.15 152)
Closest name: mediumseagreen (#3cb371)Relative luminance 0.3573

Colors that go with #43b66c

Charcoal, Mustard Yellow and Royal Blue 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 →

#b6438e

#55b643 · #43b6a5

#6c43b6 · #b66c43

Split-complementary

Open in tool →

#a543b6 · #b64355

#4355b6 · #b6438e · #b6a543

Contrast

#43b66c as textRatioAAAA largeAAAFix
Aaon white
2.58:1failfailfail
  • AA: use #32864f as the text (4.51:1)
  • AAA: use #246139 as the text (7.38:1)
  • AA: or shift the background to #383838 (4.55:1)
  • AAA: or shift the background to #141414 (7.15:1)
Aaon black
8.15:1passpasspassPasses 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 #43b66c as the background.

Brands using this color

mcpConnect your agent — build around #43b66c
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 #43b66c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43b66c-a2beaf-c459d4-1f2d2a-eaf1e9?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