Color

#6b50ce

#6b50ce
hex#6b50ce
rgbrgb(107, 80, 206)
hslhsl(253, 56%, 56%)
oklchoklch(0.529 0.186 288.2)
Closest name: slateblue (#6a5acd)Relative luminance 0.1332

Colors that go with #6b50ce

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 →

#b2ce50

#5074ce · #aa50ce

#ce6b50 · #50ce6b

Split-complementary

Open in tool →

#ceaa50 · #74ce50

#ce5074 · #b2ce50 · #50ceaa

Contrast

#6b50ce as textRatioAAAA largeAAAFix
Aaon white
5.73:1passpassfail
  • AAA: use #5a3cc8 as the text (7.2:1)
Aaon black
3.66:1failpassfail
  • AA: use #7c64d3 as the text (4.62:1)
  • AAA: use #9e8cde as the text (7.26:1)
  • AA: or shift the background to #e6e6e6 (4.59:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6b50ce as the background.

Brands using this color

Fonts for this mood

#6b50ce reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6b50ce
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 #6b50ce and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6b50ce-a99cc4-dfb84e-281f2d-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