Color

#4ac1cf

#4ac1cf
hex#4ac1cf
rgbrgb(74, 193, 207)
hslhsl(186, 58%, 55%)
oklchoklch(0.75 0.106 206.1)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.441

Colors that go with #4ac1cf

Charcoal, Light Coral and 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 →

#cf574a

#4acf9a · #4a7fcf

#cf4ac1 · #c1cf4a

Split-complementary

Open in tool →

#cf4a7f · #cf9a4a

#9a4acf · #cf574a · #7fcf4a

Contrast

#4ac1cf as textRatioAAAA largeAAAFix
Aaon white
2.14:1failfailfail
  • AA: use #247f89 as the text (4.7:1)
  • AAA: use #1c6169 as the text (7.09:1)
  • AA: or shift the background to #424242 (4.7:1)
  • AAA: or shift the background to #262626 (7.08:1)
Aaon black
9.82:1passpasspassPasses 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 #4ac1cf as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#4ac1cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4ac1cf
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 #4ac1cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ac1cf-a2b8be-df4e86-1f262d-e9f1ee?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