Color

#858db2

#858db2
hex#858db2
rgbrgb(133, 141, 178)
hslhsl(229, 23%, 61%)
oklchoklch(0.65 0.056 275.2)
Closest name: Galactic Gossamer (#7f8cb8)Relative luminance 0.2725

Colors that go with #858db2

Charcoal, Copper and Amber 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 #858db2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b2aa85

#85a4b2 · #9385b2

#b2858d · #8db285

Split-complementary

Open in tool →

#b29385 · #a4b285

#b285a4 · #b2aa85 · #85b293

Contrast

#858db2 as textRatioAAAA largeAAAFix
Aaon white
3.26:1failpassfail
  • AA: use #6873a1 as the text (4.61:1)
  • AAA: use #4f577d as the text (7.02:1)
  • AA: or shift the background to #262626 (4.65:1)
Aaon black
6.45:1passpassfail
  • AAA: use #8e96b8 as the text (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #858db2 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 #858db2
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 #858db2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/858db2-9c9fc4-df7e4e-231f2d-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