Color

#64288f

#64288f
hex#64288f
rgbrgb(100, 40, 143)
hslhsl(275, 56%, 36%)
oklchoklch(0.416 0.163 307.3)
Closest name: rebeccapurple (#663399)Relative luminance 0.0621

Colors that go with #64288f

Crimson, Tomato and Olive Green 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 →

#538f28

#31288f · #8f2887

#8f6428 · #288f64

Split-complementary

Open in tool →

#878f28 · #288f31

#8f3128 · #538f28 · #28878f

Contrast

#64288f as textRatioAAAA largeAAAFix
Aaon white
9.37:1passpasspassPasses AAA — no fix needed.
Aaon black
2.24:1failfailfail
  • AA: use #9c54cf as the text (4.58:1)
  • AAA: use #b580db as the text (7.08:1)
  • AA: or shift the background to #b5b5b5 (4.57:1)
  • AAA: or shift the background to #e0e0e0 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #64288f 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

#64288f reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #64288f
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 #64288f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/64288f-b89cc4-c0cb62-2d1f2d-eae9f1?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