Color

#43a39b

#43a39b
hex#43a39b
rgbrgb(67, 163, 155)
hslhsl(175, 42%, 45%)
oklchoklch(0.657 0.09 187.7)
Closest name: Baltic (#279d9f)Relative luminance 0.2975

Colors that go with #43a39b

Charcoal, Copper 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.

Real palettes that use #43a39b

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#a3434b

#43a36b · #437ba3

#9b43a3 · #a39b43

Split-complementary

Open in tool →

#a3437b · #a36b43

#6b43a3 · #a3434b · #7ba343

Contrast

#43a39b as textRatioAAAA largeAAAFix
Aaon white
3.02:1failpassfail
  • AA: use #35827c as the text (4.53:1)
  • AAA: use #28625d as the text (7.01:1)
  • AA: or shift the background to #2b2b2b (4.69:1)
Aaon black
6.95:1passpassfail
  • AAA: use #44a79e as the text (7.27:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #43a39b 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 #43a39b
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 #43a39b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43a39b-a2bdbe-d4599f-1f282d-e9f1ed?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