Color

#866cef

#866cef
hex#866cef
rgbrgb(134, 108, 239)
hslhsl(252, 80%, 68%)
oklchoklch(0.621 0.189 288.8)
Closest name: mediumslateblue (#7b68ee)Relative luminance 0.2203

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d5ef6c

#6c93ef · #c86cef

#ef866c · #6cef86

Split-complementary

Open in tool →

#efc86c · #93ef6c

#ef6c93 · #d5ef6c · #6cefc8

Contrast

#866cef as textRatioAAAA largeAAAFix
Aaon white
3.89:1failpassfail
  • AA: use #7b5eed as the text (4.5:1)
  • AAA: use #5530e8 as the text (7.06:1)
  • AA: or shift the background to #171717 (4.61:1)
Aaon black
5.41:1passpassfail
  • AAA: use #9d88f2 as the text (7.24:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #866cef 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

#866cef reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #866cef
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #866cef and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/866cef-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