Color

#6c8d99

#6c8d99
hex#6c8d99
rgbrgb(108, 141, 153)
hslhsl(196, 18%, 51%)
oklchoklch(0.623 0.041 222.2)
Closest name: lightslategray (#778899)Relative luminance 0.2454

Colors that go with #6c8d99

Charcoal, Copper and Burlywood 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 →

#99786c

#6c998e · #6c7699

#996c8d · #8d996c

Split-complementary

Open in tool →

#996c76 · #998e6c

#8e6c99 · #99786c · #76996c

Contrast

#6c8d99 as textRatioAAAA largeAAAFix
Aaon white
3.55:1failpassfail
  • AA: use #5c7a84 as the text (4.59:1)
  • AAA: use #455b63 as the text (7.17:1)
  • AA: or shift the background to #212121 (4.53:1)
Aaon black
5.91:1passpassfail
  • AAA: use #7e9ba5 as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6c8d99 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 #6c8d99
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 #6c8d99 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6c8d99-9cb5c4-df4e6e-1f232d-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