Color

#668d99

#668d99
hex#668d99
rgbrgb(102, 141, 153)
hslhsl(194, 20%, 50%)
oklchoklch(0.619 0.047 218.8)
Closest name: Cavolo Nero (#72939e)Relative luminance 0.2417

Tints & shades

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

Harmonies

Complementary

Open in tool →

#997266

#66998b · #667499

#99668d · #8d9966

Split-complementary

Open in tool →

#996674 · #998b66

#8b6699 · #997266 · #749966

Contrast

#668d99 as textRatioAAAA largeAAAFix
Aaon white
3.6:1failpassfail
  • AA: use #587984 as the text (4.68:1)
  • AAA: use #435d65 as the text (7.02:1)
  • AA: or shift the background to #1f1f1f (4.58:1)
Aaon black
5.83:1passpassfail
  • AAA: use #789ba5 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #668d99 as the background.

Brands using this color

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

mcpConnect your agent — build around #668d99
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 #668d99 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/668d99-9cb6c4-df4e72-1f242d-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