Color

#878b6f

#878b6f
hex#878b6f
rgbrgb(135, 139, 111)
hslhsl(69, 11%, 49%)
oklchoklch(0.626 0.041 114.2)
Closest name: Antique (#8b846d)Relative luminance 0.2476

Colors that go with #878b6f

Charcoal, Medium Purple 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.

Real palettes that use #878b6f

Tints & shades

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

Harmonies

Complementary

Open in tool →

#736f8b

#8b816f · #798b6f

#6f878b · #8b6f87

Split-complementary

Open in tool →

#6f798b · #816f8b

#6f8b81 · #736f8b · #8b6f79

Contrast

#878b6f as textRatioAAAA largeAAAFix
Aaon white
3.53:1failpassfail
  • AA: use #73775f as the text (4.63:1)
  • AAA: use #555846 as the text (7.32:1)
  • AA: or shift the background to #212121 (4.56:1)
Aaon black
5.95:1passpassfail
  • AAA: use #959980 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 #878b6f 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 #878b6f
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 #878b6f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/878b6f-b7bea2-4e7edf-252d1f-f1eee9?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