Color

#81dad9

#81dad9
hex#81dad9
rgbrgb(129, 218, 217)
hslhsl(179, 55%, 68%)
oklchoklch(0.832 0.086 194.7)
Closest name: Cold Blue (#88dddd)Relative luminance 0.5982

Colors that go with #81dad9

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 →

#da8182

#81daac · #81afda

#d981da · #dad981

Split-complementary

Open in tool →

#da81af · #daac81

#ac81da · #da8182 · #afda81

Contrast

#81dad9 as textRatioAAAA largeAAAFix
Aaon white
1.62:1failfailfail
  • AA: use #268281 as the text (4.57:1)
  • AAA: use #1c5f5e as the text (7.37:1)
  • AA: or shift the background to #545454 (4.67:1)
  • AAA: or shift the background to #383838 (7.24:1)
Aaon black
12.96:1passpasspassPasses 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 #81dad9 as the background.

Brands using this color

mcpConnect your agent — build around #81dad9
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 #81dad9 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81dad9-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