Color

#878ec4

#878ec4
hex#878ec4
rgbrgb(135, 142, 196)
hslhsl(233, 34%, 65%)
oklchoklch(0.662 0.081 278.2)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2848

Colors that go with #878ec4

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 #878ec4

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c4bd87

#87adc4 · #9f87c4

#c4878e · #8ec487

Split-complementary

Open in tool →

#c49f87 · #adc487

#c487ad · #c4bd87 · #87c49f

Contrast

#878ec4 as textRatioAAAA largeAAAFix
Aaon white
3.14:1failpassfail
  • AA: use #656eb3 as the text (4.74:1)
  • AAA: use #4a5396 as the text (7.07:1)
  • AA: or shift the background to #2b2b2b (4.52:1)
Aaon black
6.7:1passpassfail
  • AAA: use #8b92c6 as the text (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #878ec4 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 #878ec4
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 #878ec4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/878ec4-9c9cc4-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