Color

#6c8a99

#6c8a99
hex#6c8a99
rgbrgb(108, 138, 153)
hslhsl(200, 18%, 51%)
oklchoklch(0.616 0.041 229.9)
Closest name: lightslategray (#778899)Relative luminance 0.2367

Colors that go with #6c8a99

Charcoal, Copper and Blush Pink 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 →

#997b6c

#6c9991 · #6c7399

#996c8a · #8a996c

Split-complementary

Open in tool →

#996c73 · #99916c

#916c99 · #997b6c · #73996c

Contrast

#6c8a99 as textRatioAAAA largeAAAFix
Aaon white
3.66:1failpassfail
  • AA: use #5e7a87 as the text (4.56:1)
  • AAA: use #475c66 as the text (7.02:1)
  • AA: or shift the background to #1c1c1c (4.65:1)
Aaon black
5.73:1passpassfail
  • AAA: use #819aa7 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6c8a99 as the background.

Brands using this color

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

Palettes built around it

mcpConnect your agent — build around #6c8a99
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 #6c8a99 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6c8a99-9cb2c4-df4e64-1f232d-e9f1f0?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