Color

#6c889d

#6c889d
hex#6c889d
rgbrgb(108, 136, 157)
hslhsl(206, 20%, 52%)
oklchoklch(0.613 0.045 240.9)
Closest name: lightslategray (#778899)Relative luminance 0.2323

Colors that go with #6c889d

Charcoal, Copper and Champagne 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 →

#9d816c

#6c9d9a · #6c6f9d

#9d6c88 · #889d6c

Split-complementary

Open in tool →

#9d6c6f · #9d9a6c

#9a6c9d · #9d816c · #6f9d6c

Contrast

#6c889d as textRatioAAAA largeAAAFix
Aaon white
3.72:1failpassfail
  • AA: use #5e788d as the text (4.62:1)
  • AAA: use #455968 as the text (7.29:1)
  • AA: or shift the background to #1c1c1c (4.58:1)
Aaon black
5.65:1passpassfail
  • AAA: use #8299ab as the text (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6c889d as the background.

Brands using this color

mcpConnect your agent — build around #6c889d
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 #6c889d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6c889d-9caec4-df4e56-1f212d-e9f1f1?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