Color

#856ff1

#856ff1
hex#856ff1
rgbrgb(133, 111, 241)
hslhsl(250, 82%, 69%)
oklchoklch(0.626 0.188 287.5)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.2271

Colors that go with #856ff1

Blue, Deep Sky Blue and Denim 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dbf16f

#6f9af1 · #c66ff1

#f1856f · #6ff185

Split-complementary

Open in tool →

#f1c66f · #9af16f

#f16f9a · #dbf16f · #6ff1c6

Contrast

#856ff1 as textRatioAAAA largeAAAFix
Aaon white
3.79:1failpassfail
  • AA: use #755def as the text (4.6:1)
  • AAA: use #4e2eea as the text (7.23:1)
  • AA: or shift the background to #1a1a1a (4.59:1)
Aaon black
5.54:1passpassfail
  • AAA: use #9886f3 as the text (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #856ff1 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#856ff1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #856ff1
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 #856ff1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/856ff1-a79cc4-dfb14e-281f2d-e9ecf1?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