Color

#878dba

#878dba
hex#878dba
rgbrgb(135, 141, 186)
hslhsl(233, 27%, 63%)
oklchoklch(0.655 0.067 278.5)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2775

Colors that go with #878dba

Charcoal, Amber and Copper 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 #878dba

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bab487

#87a7ba · #9b87ba

#ba878d · #8dba87

Split-complementary

Open in tool →

#ba9b87 · #a7ba87

#ba87a7 · #bab487 · #87ba9b

Contrast

#878dba as textRatioAAAA largeAAAFix
Aaon white
3.21:1failpassfail
  • AA: use #6a71a9 as the text (4.62:1)
  • AAA: use #4e5588 as the text (7.05:1)
  • AA: or shift the background to #292929 (4.54:1)
Aaon black
6.55:1passpassfail
  • AAA: use #8e93be as the text (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #878dba 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 #878dba
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 #878dba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/878dba-9c9cc4-df884e-241f2d-e9eef1?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