Color

#43cbb9

#43cbb9
hex#43cbb9
rgbrgb(67, 203, 185)
hslhsl(172, 57%, 53%)
oklchoklch(0.765 0.119 182.5)
Closest name: Cockatoo (#58c8b6)Relative luminance 0.4741

Colors that go with #43cbb9

Charcoal, Blue and Crimson 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 →

#cb4355

#43cb75 · #4399cb

#b943cb · #cbb943

Split-complementary

Open in tool →

#cb4399 · #cb7543

#7543cb · #cb4355 · #99cb43

Contrast

#43cbb9 as textRatioAAAA largeAAAFix
Aaon white
2:1failfailfail
  • AA: use #248477 as the text (4.52:1)
  • AAA: use #1a6057 as the text (7.36:1)
  • AA: or shift the background to #474747 (4.64:1)
  • AAA: or shift the background to #2b2b2b (7.07:1)
Aaon black
10.48:1passpasspassPasses 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 #43cbb9 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 #43cbb9
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 #43cbb9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43cbb9-a2bebe-d459a5-1f292d-e9f1ec?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