Color

#81cfc8

#81cfc8
hex#81cfc8
rgbrgb(129, 207, 200)
hslhsl(175, 45%, 66%)
oklchoklch(0.802 0.078 188.5)
Closest name: Hidden Sea Glass (#6fd1c9)Relative luminance 0.5346

Colors that go with #81cfc8

Charcoal, Dark Salmon 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 →

#cf8188

#81cfa2 · #81afcf

#c981cf · #cfc981

Split-complementary

Open in tool →

#cf81af · #cfa281

#a281cf · #cf8188 · #afcf81

Contrast

#81cfc8 as textRatioAAAA largeAAAFix
Aaon white
1.8:1failfailfail
  • AA: use #31817b as the text (4.61:1)
  • AAA: use #24605b as the text (7.24:1)
  • AA: or shift the background to #4f4f4f (4.56:1)
  • AAA: or shift the background to #333333 (7.03:1)
Aaon black
11.69:1passpasspassPasses 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 #81cfc8 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 #81cfc8
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 #81cfc8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81cfc8-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