Color

#81e4df

#81e4df
hex#81e4df
rgbrgb(129, 228, 223)
hslhsl(177, 65%, 70%)
oklchoklch(0.857 0.094 191.3)
Closest name: Cold Blue (#88dddd)Relative luminance 0.6548

Colors that go with #81e4df

Charcoal, Crimson and Deep Sky Blue 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 →

#e48186

#81e4ae · #81b7e4

#df81e4 · #e4df81

Split-complementary

Open in tool →

#e481b7 · #e4ae81

#ae81e4 · #e48186 · #b7e481

Contrast

#81e4df as textRatioAAAA largeAAAFix
Aaon white
1.49:1failfailfail
  • AA: use #1c827d as the text (4.63:1)
  • AAA: use #15615d as the text (7.24:1)
  • AA: or shift the background to #595959 (4.7:1)
  • AAA: or shift the background to #3d3d3d (7.29:1)
Aaon black
14.1:1passpasspassPasses 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 #81e4df 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

#81e4df reads as vivid, light, clean. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81e4df
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 #81e4df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81e4df-a2bcbe-d4599b-1f282d-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