Color

#4bb4b0

#4bb4b0
hex#4bb4b0
rgbrgb(75, 180, 176)
hslhsl(178, 41%, 50%)
oklchoklch(0.708 0.096 191.7)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3727

Colors that go with #4bb4b0

Charcoal, Crimson and Dark Olive Green 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 →

#b44b4f

#4bb47c · #4b83b4

#b04bb4 · #b4b04b

Split-complementary

Open in tool →

#b44b83 · #b47c4b

#7c4bb4 · #b44b4f · #83b44b

Contrast

#4bb4b0 as textRatioAAAA largeAAAFix
Aaon white
2.48:1failfailfail
  • AA: use #36817f as the text (4.56:1)
  • AAA: use #29615f as the text (7.07:1)
  • AA: or shift the background to #3b3b3b (4.51:1)
  • AAA: or shift the background to #1a1a1a (7.01:1)
Aaon black
8.45:1passpasspassPasses 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 #4bb4b0 as the background.

Brands using this color

mcpConnect your agent — build around #4bb4b0
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 #4bb4b0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4bb4b0-a2bcbe-d45999-1f282d-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