Color

#858eb2

#858eb2
hex#858eb2
rgbrgb(133, 142, 178)
hslhsl(228, 23%, 61%)
oklchoklch(0.652 0.055 273.8)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2755

Colors that go with #858eb2

Charcoal, Copper and Deep Sky Blue 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 #858eb2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b2a985

#85a5b2 · #9285b2

#b2858e · #8eb285

Split-complementary

Open in tool →

#b29285 · #a5b285

#b285a5 · #b2a985 · #85b292

Contrast

#858eb2 as textRatioAAAA largeAAAFix
Aaon white
3.23:1failpassfail
  • AA: use #6874a1 as the text (4.56:1)
  • AAA: use #4d567a as the text (7.17:1)
  • AA: or shift the background to #292929 (4.51:1)
Aaon black
6.51:1passpassfail
  • AAA: use #8b94b6 as the text (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #858eb2 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 #858eb2
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 #858eb2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/858eb2-9c9fc4-df7c4e-231f2d-e9eff1?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