Color

#668db7

#668db7
hex#668db7
rgbrgb(102, 141, 183)
hslhsl(211, 36%, 56%)
oklchoklch(0.631 0.077 250.9)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2529

Colors that go with #668db7

Charcoal, Copper and Amber 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 →

#b79066

#66b6b7 · #6866b7

#b7668d · #8db766

Split-complementary

Open in tool →

#b76866 · #b6b766

#b766b6 · #b79066 · #66b768

Contrast

#668db7 as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #4e79a6 as the text (4.56:1)
  • AAA: use #3b5b7d as the text (7.05:1)
  • AA: or shift the background to #212121 (4.65:1)
Aaon black
6.06:1passpassfail
  • AAA: use #789abf as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #668db7 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#668db7 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #668db7
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 #668db7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/668db7-9cabc4-df534e-1f202d-e9f1f1?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