Color

#12bfbc

#12bfbc
hex#12bfbc
rgbrgb(18, 191, 188)
hslhsl(179, 83%, 41%)
oklchoklch(0.728 0.123 192.8)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.4102

Colors that go with #12bfbc

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 →

#bf1215

#12bf66 · #126bbf

#bc12bf · #bfbc12

Split-complementary

Open in tool →

#bf126b · #bf6612

#6612bf · #bf1215 · #6bbf12

Contrast

#12bfbc as textRatioAAAA largeAAAFix
Aaon white
2.28:1failfailfail
  • AA: use #0c8381 as the text (4.59:1)
  • AAA: use #096261 as the text (7.16:1)
  • AA: or shift the background to #404040 (4.54:1)
  • AAA: or shift the background to #212121 (7.06:1)
Aaon black
9.2:1passpasspassPasses 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 #12bfbc as the background.

Brands using this color

mcpConnect your agent — build around #12bfbc
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 #12bfbc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/12bfbc-a2bbbe-d45996-1f272d-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