Color

#66dafa

#66dafa
hex#66dafa
rgbrgb(102, 218, 250)
hslhsl(193, 94%, 69%)
oklchoklch(0.833 0.113 218.7)
Closest name: Sky Blue (#87ceeb)Relative luminance 0.5987

Colors that go with #66dafa

Charcoal, Dodger Blue and Midnight 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 →

#fa8666

#66fad0 · #6690fa

#fa66da · #dafa66

Split-complementary

Open in tool →

#fa6690 · #fad066

#d066fa · #fa8666 · #90fa66

Contrast

#66dafa as textRatioAAAA largeAAAFix
Aaon white
1.62:1failfailfail
  • AA: use #057d9e as the text (4.74:1)
  • AAA: use #045e77 as the text (7.31:1)
  • AA: or shift the background to #545454 (4.68:1)
  • AAA: or shift the background to #383838 (7.24:1)
Aaon black
12.97:1passpasspassPasses 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 #66dafa as the background.

Brands using this color

Fonts for this mood

#66dafa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #66dafa
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 #66dafa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/66dafa-a2b5be-df4e75-1f242d-e9f1ef?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