Color

#668acc

#668acc
hex#668acc
rgbrgb(102, 138, 204)
hslhsl(219, 50%, 60%)
oklchoklch(0.635 0.108 261.9)
Closest name: Blue Jay (#5588dd)Relative luminance 0.2536

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#cca866

#66bdcc · #7566cc

#cc668a · #8acc66

Split-complementary

Open in tool →

#cc7566 · #bdcc66

#cc66bd · #cca866 · #66cc75

Contrast

#668acc as textRatioAAAA largeAAAFix
Aaon white
3.46:1failpassfail
  • AA: use #4b75c3 as the text (4.53:1)
  • AAA: use #335799 as the text (7.08:1)
  • AA: or shift the background to #212121 (4.66:1)
Aaon black
6.07:1passpassfail
  • AAA: use #7998d2 as the text (7.23:1)

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

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

mcpConnect your agent — build around #668acc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #668acc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/668acc-9ca5c4-df664e-211f2d-e9f0f1?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