Color

#878ec0

#878ec0
hex#878ec0
rgbrgb(135, 142, 192)
hslhsl(233, 31%, 64%)
oklchoklch(0.66 0.075 278)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.283

Colors that go with #878ec0

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 #878ec0

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c0b987

#87aac0 · #9d87c0

#c0878d · #8dc087

Split-complementary

Open in tool →

#c09d87 · #aac087

#c087aa · #c0b987 · #87c09d

Contrast

#878ec0 as textRatioAAAA largeAAAFix
Aaon white
3.15:1failpassfail
  • AA: use #6971b0 as the text (4.58:1)
  • AAA: use #4c5490 as the text (7.05:1)
  • AA: or shift the background to #292929 (4.61:1)
Aaon black
6.66:1passpassfail
  • AAA: use #8d94c3 as the text (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #878ec0 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 #878ec0
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 #878ec0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/878ec0-9c9cc4-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