Color

#856cea

#856cea
hex#856cea
rgbrgb(133, 108, 234)
hslhsl(252, 75%, 67%)
oklchoklch(0.617 0.183 289)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.2165

Colors that go with #856cea

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 →

#d1ea6c

#6c92ea · #c46cea

#ea856c · #6cea85

Split-complementary

Open in tool →

#eac46c · #92ea6c

#ea6c92 · #d1ea6c · #6ceac4

Contrast

#856cea as textRatioAAAA largeAAAFix
Aaon white
3.94:1failpassfail
  • AA: use #7a5ee8 as the text (4.57:1)
  • AAA: use #5532e2 as the text (7.14:1)
  • AA: or shift the background to #171717 (4.55:1)
Aaon black
5.33:1passpassfail
  • AAA: use #9b87ee as the text (7.09:1)

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

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

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

tool url/palettes/new/856cea-a99cc4-dfb64e-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