Color

#81dadf

#81dadf
hex#81dadf
rgbrgb(129, 218, 223)
hslhsl(183, 59%, 69%)
oklchoklch(0.834 0.086 200.3)
Closest name: Cold Blue (#88dddd)Relative luminance 0.6014

Tints & shades

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

Harmonies

Complementary

Open in tool →

#df8681

#81dfb5 · #81abdf

#df81da · #dadf81

Split-complementary

Open in tool →

#df81ab · #dfb581

#b581df · #df8681 · #abdf81

Contrast

#81dadf as textRatioAAAA largeAAAFix
Aaon white
1.61:1failfailfail
  • AA: use #238186 as the text (4.61:1)
  • AAA: use #1a6265 as the text (7.05:1)
  • AA: or shift the background to #545454 (4.7:1)
  • AAA: or shift the background to #383838 (7.27:1)
Aaon black
13.03:1passpasspassPasses 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 #81dadf 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

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

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

tool url/palettes/new/81dadf-a2b9be-d4598e-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