Color

#81d7da

#81d7da
hex#81d7da
rgbrgb(129, 215, 218)
hslhsl(182, 55%, 68%)
oklchoklch(0.826 0.083 198.5)
Closest name: Cold Blue (#88dddd)Relative luminance 0.5833

Colors that go with #81d7da

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 →

#da8481

#81dab0 · #81aada

#da81d7 · #d7da81

Split-complementary

Open in tool →

#da81aa · #dab081

#b081da · #da8481 · #aada81

Contrast

#81d7da as textRatioAAAA largeAAAFix
Aaon white
1.66:1failfailfail
  • AA: use #267f82 as the text (4.73:1)
  • AAA: use #1d6063 as the text (7.23:1)
  • AA: or shift the background to #545454 (4.57:1)
  • AAA: or shift the background to #383838 (7.07:1)
Aaon black
12.67:1passpasspassPasses 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 #81d7da as the background.

Brands using this color

Fonts for this mood

#81d7da reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81d7da
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 #81d7da and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81d7da-a2babe-d45990-1f272d-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