Color

#81dfdf

#81dfdf
hex#81dfdf
rgbrgb(129, 223, 223)
hslhsl(180, 59%, 69%)
oklchoklch(0.846 0.09 195.6)
Closest name: Cold Blue (#88dddd)Relative luminance 0.6277

Tints & shades

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

Harmonies

Complementary

Open in tool →

#df8181

#81dfb0 · #81b0df

#df81df · #dfdf81

Split-complementary

Open in tool →

#df81b0 · #dfb081

#b081df · #df8181 · #b0df81

Contrast

#81dfdf as textRatioAAAA largeAAAFix
Aaon white
1.55:1failfailfail
  • AA: use #218282 as the text (4.59:1)
  • AAA: use #196161 as the text (7.18:1)
  • AA: or shift the background to #595959 (4.52:1)
  • AAA: or shift the background to #3d3d3d (7.01:1)
Aaon black
13.55:1passpasspassPasses 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 #81dfdf 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

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

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

tool url/palettes/new/81dfdf-a2bbbe-d45994-1f272d-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