Color

#856fe7

#856fe7
hex#856fe7
rgbrgb(133, 111, 231)
hslhsl(251, 71%, 67%)
oklchoklch(0.62 0.175 288.7)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.2212

Colors that go with #856fe7

Amber, Blue 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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d1e76f

#6f95e7 · #c16fe7

#e7856f · #6fe785

Split-complementary

Open in tool →

#e7c16f · #95e76f

#e76f95 · #d1e76f · #6fe7c1

Contrast

#856fe7 as textRatioAAAA largeAAAFix
Aaon white
3.87:1failpassfail
  • AA: use #765ee4 as the text (4.68:1)
  • AAA: use #5536dd as the text (7.1:1)
  • AA: or shift the background to #171717 (4.63:1)
Aaon black
5.42:1passpassfail
  • AAA: use #9b89eb as the text (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #856fe7 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

#856fe7 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #856fe7
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 #856fe7 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/856fe7-a89cc4-dfb34e-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