Color

#6d51ec

#6d51ec
hex#6d51ec
rgbrgb(109, 81, 236)
hslhsl(251, 80%, 62%)
oklchoklch(0.555 0.221 284.9)
Closest name: Candy Grape Fizz (#7755ee)Relative luminance 0.1519

Colors that go with #6d51ec

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cfec51

#5182ec · #bb51ec

#ec6d51 · #51ec6d

Split-complementary

Open in tool →

#ecbb51 · #82ec51

#ec5182 · #cfec51 · #51ecbb

Contrast

#6d51ec as textRatioAAAA largeAAAFix
Aaon white
5.2:1passpassfail
  • AAA: use #5230e8 as the text (7.13:1)
Aaon black
4.04:1failpassfail
  • AA: use #795eed as the text (4.64:1)
  • AAA: use #9b88f2 as the text (7.2:1)
  • AA: or shift the background to #f0f0f0 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6d51ec 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

#6d51ec reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6d51ec
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 #6d51ec and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6d51ec-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