Color

#81b8ca

#81b8ca
hex#81b8ca
rgbrgb(129, 184, 202)
hslhsl(195, 41%, 65%)
oklchoklch(0.751 0.063 220.3)
Closest name: Crystal Lake (#88b5c4)Relative luminance 0.4321

Colors that go with #81b8ca

Charcoal, Dark Salmon and Blush Pink 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.

Real palettes that use #81b8ca

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#ca9381

#81cab8 · #8193ca

#ca81b8 · #b8ca81

Split-complementary

Open in tool →

#ca8193 · #cab881

#b881ca · #ca9381 · #93ca81

Contrast

#81b8ca as textRatioAAAA largeAAAFix
Aaon white
2.18:1failfailfail
  • AA: use #3e7e93 as the text (4.55:1)
  • AAA: use #2f5f6f as the text (7.03:1)
  • AA: or shift the background to #424242 (4.61:1)
  • AAA: or shift the background to #242424 (7.13:1)
Aaon black
9.64:1passpasspassPasses 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 #81b8ca 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

#81b8ca reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81b8ca
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 #81b8ca and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81b8ca-9cb5c4-df4e70-1f242d-e9f1ef?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