Color

#668583

#668583
hex#668583
rgbrgb(102, 133, 131)
hslhsl(176, 13%, 46%)
oklchoklch(0.592 0.035 191.3)
Closest name: Arctic (#648589)Relative luminance 0.2124

Tints & shades

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

Harmonies

Complementary

Open in tool →

#856668

#668573 · #667785

#836685 · #858366

Split-complementary

Open in tool →

#856677 · #857366

#736685 · #856668 · #778566

Contrast

#668583 as textRatioAAAA largeAAAFix
Aaon white
4:1failpassfail
  • AA: use #5f7c7a as the text (4.52:1)
  • AAA: use #475c5b as the text (7.12:1)
  • AA: or shift the background to #141414 (4.6:1)
Aaon black
5.25:1passpassfail
  • AAA: use #7d9b99 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #668583 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 #668583
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 #668583 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/668583-a2bdbe-d4599d-1f282d-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