Color

#6683cc

#6683cc
hex#6683cc
rgbrgb(102, 131, 204)
hslhsl(223, 50%, 60%)
oklchoklch(0.62 0.116 266.6)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2342

Colors that go with #6683cc

Charcoal, Sea Green and Copper 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 →

#ccaf66

#66b6cc · #7c66cc

#cc6683 · #83cc66

Split-complementary

Open in tool →

#cc7c66 · #b6cc66

#cc66b6 · #ccaf66 · #66cc7c

Contrast

#6683cc as textRatioAAAA largeAAAFix
Aaon white
3.69:1failpassfail
  • AA: use #5373c6 as the text (4.53:1)
  • AAA: use #3654a1 as the text (7.14:1)
  • AA: or shift the background to #1c1c1c (4.61:1)
Aaon black
5.68:1passpassfail
  • AAA: use #7d96d4 as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6683cc 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

#6683cc reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6683cc
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 #6683cc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6683cc-9ca3c4-df704e-211f2d-e9eff1?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