Color

#667bd6

#667bd6
hex#667bd6
rgbrgb(102, 123, 214)
hslhsl(229, 58%, 62%)
oklchoklch(0.609 0.14 271.9)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2185

Colors that go with #667bd6

Charcoal, Sea Green 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 →

#d6c266

#66b3d6 · #8966d6

#d6667b · #7bd666

Split-complementary

Open in tool →

#d68966 · #b3d666

#d666b3 · #d6c266 · #66d689

Contrast

#667bd6 as textRatioAAAA largeAAAFix
Aaon white
3.91:1failpassfail
  • AA: use #566dd2 as the text (4.65:1)
  • AAA: use #334dc1 as the text (7.07:1)
  • AA: or shift the background to #171717 (4.58:1)
Aaon black
5.37:1passpassfail
  • AAA: use #8293de as the text (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #667bd6 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

#667bd6 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #667bd6
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 #667bd6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/667bd6-9c9fc4-df7e4e-231f2d-e9eef1?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