Color

#6f59cf

#6f59cf
hex#6f59cf
rgbrgb(111, 89, 207)
hslhsl(251, 55%, 58%)
oklchoklch(0.548 0.175 287.8)
Closest name: slateblue (#6a5acd)Relative luminance 0.1503

Colors that go with #6f59cf

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 →

#b9cf59

#597ecf · #a959cf

#cf6f59 · #59cf6f

Split-complementary

Open in tool →

#cfa959 · #7ecf59

#cf597e · #b9cf59 · #59cfa9

Contrast

#6f59cf as textRatioAAAA largeAAAFix
Aaon white
5.24:1passpassfail
  • AAA: use #573dc7 as the text (7.25:1)
Aaon black
4.01:1failpassfail
  • AA: use #7965d2 as the text (4.61:1)
  • AAA: use #9b8cde as the text (7.2:1)
  • AA: or shift the background to #f0f0f0 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6f59cf 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

#6f59cf reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6f59cf
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 #6f59cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6f59cf-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