Color

#81bcd5

#81bcd5
hex#81bcd5
rgbrgb(129, 188, 213)
hslhsl(198, 50%, 67%)
oklchoklch(0.764 0.071 226.4)
Closest name: Dolphin (#86c4da)Relative luminance 0.4544

Colors that go with #81bcd5

Charcoal, Dark Salmon and 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.

Real palettes that use #81bcd5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d59a81

#81d5c4 · #8192d5

#d581bc · #bcd581

Split-complementary

Open in tool →

#d58192 · #d5c481

#c481d5 · #d59a81 · #92d581

Contrast

#81bcd5 as textRatioAAAA largeAAAFix
Aaon white
2.08:1failfailfail
  • AA: use #347d9d as the text (4.6:1)
  • AAA: use #285f77 as the text (7.02:1)
  • AA: or shift the background to #454545 (4.61:1)
  • AAA: or shift the background to #262626 (7.27:1)
Aaon black
10.09:1passpasspassPasses 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 #81bcd5 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

#81bcd5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #81bcd5
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 #81bcd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/81bcd5-9cb3c4-df4e69-1f232d-e9f1f0?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