Color

#668a8a

#668a8a
hex#668a8a
rgbrgb(102, 138, 138)
hslhsl(180, 15%, 47%)
oklchoklch(0.607 0.04 196.1)
Closest name: Arctic (#648589)Relative luminance 0.2284

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8a6666

#668a78 · #66788a

#8a668a · #8a8a66

Split-complementary

Open in tool →

#8a6678 · #8a7866

#78668a · #8a6666 · #788a66

Contrast

#668a8a as textRatioAAAA largeAAAFix
Aaon white
3.77:1failpassfail
  • AA: use #5b7b7b as the text (4.6:1)
  • AAA: use #435b5b as the text (7.28:1)
  • AA: or shift the background to #1c1c1c (4.52:1)
Aaon black
5.57:1passpassfail
  • AAA: use #7b9d9d as the text (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #668a8a 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 #668a8a
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 #668a8a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/668a8a-a2bbbe-d45994-1f272d-e9f1ed?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