Color

#66caeb

#66caeb
hex#66caeb
rgbrgb(102, 202, 235)
hslhsl(195, 77%, 66%)
oklchoklch(0.791 0.104 222.2)
Closest name: Blue Mana (#68c2f5)Relative luminance 0.5106

Colors that go with #66caeb

Charcoal, Dark Salmon and Crimson 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 →

#eb8766

#66ebca · #6687eb

#eb66ca · #caeb66

Split-complementary

Open in tool →

#eb6687 · #ebca66

#ca66eb · #eb8766 · #87eb66

Contrast

#66caeb as textRatioAAAA largeAAAFix
Aaon white
1.87:1failfailfail
  • AA: use #157fa2 as the text (4.58:1)
  • AAA: use #105f7a as the text (7.14:1)
  • AA: or shift the background to #4d4d4d (4.51:1)
  • AAA: or shift the background to #303030 (7.05:1)
Aaon black
11.21:1passpasspassPasses 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 #66caeb 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

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

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

tool url/palettes/new/66caeb-9cb5c4-df4e70-1f242d-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