Color

#81dbdf

#81dbdf
hex#81dbdf
rgbrgb(129, 219, 223)
hslhsl(183, 59%, 69%)
oklchoklch(0.837 0.087 199.3)
Closest name: Cold Blue (#88dddd)Relative luminance 0.6066

Colors that go with #81dbdf

Charcoal, Deep Sky Blue and Dark Salmon 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 →

#df8681

#81dfb5 · #81abdf

#df81da · #dadf81

Split-complementary

Open in tool →

#df81ab · #dfb581

#b581df · #df8681 · #abdf81

Contrast

#81dbdf as textRatioAAAA largeAAAFix
Aaon white
1.6:1failfailfail
  • AA: use #238186 as the text (4.61:1)
  • AAA: use #1a6265 as the text (7.05:1)
  • AA: or shift the background to #575757 (4.52:1)
  • AAA: or shift the background to #3b3b3b (7:1)
Aaon black
13.13:1passpasspassPasses 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 #81dbdf 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

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

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

tool url/palettes/new/81dbdf-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