Color

#81c6cf

#81c6cf
hex#81c6cf
rgbrgb(129, 198, 207)
hslhsl(187, 45%, 66%)
oklchoklch(0.784 0.071 206.2)
Closest name: Cerulean Skies (#8cc6cb)Relative luminance 0.4956

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cf8a81

#81cfb1 · #819fcf

#cf81c6 · #c6cf81

Split-complementary

Open in tool →

#cf819f · #cfb181

#b181cf · #cf8a81 · #9fcf81

Contrast

#81c6cf as textRatioAAAA largeAAAFix
Aaon white
1.92:1failfailfail
  • AA: use #347f89 as the text (4.62:1)
  • AAA: use #276068 as the text (7.1:1)
  • AA: or shift the background to #4a4a4a (4.61:1)
  • AAA: or shift the background to #2e2e2e (7.06:1)
Aaon black
10.91:1passpasspassPasses 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 #81c6cf 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

#81c6cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81c6cf
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #81c6cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81c6cf-a2b8be-df4e83-1f262d-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