Color

#6b40e2

#6b40e2
hex#6b40e2
rgbrgb(107, 64, 226)
hslhsl(256, 74%, 57%)
oklchoklch(0.522 0.229 287.9)
Closest name: Hokkaido Lavender (#7736d9)Relative luminance 0.1228

Colors that go with #6b40e2

Charcoal, Sea Green 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 #6b40e2

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b7e240

#4066e2 · #bd40e2

#e26b40 · #40e26b

Split-complementary

Open in tool →

#e2bd40 · #66e240

#e24066 · #b7e240 · #40e2bd

Contrast

#6b40e2 as textRatioAAAA largeAAAFix
Aaon white
6.08:1passpassfail
  • AAA: use #5e2ee0 as the text (7.14:1)
Aaon black
3.46:1failpassfail
  • AA: use #805be6 as the text (4.56:1)
  • AAA: use #a287ed as the text (7.22:1)
  • AA: or shift the background to #dedede (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6b40e2 as the background.

Brands using this color

Fonts for this mood

#6b40e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6b40e2
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 #6b40e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6b40e2-ab9cc4-dfbf4e-291f2d-e9ebf1?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