Color

#63289a

#63289a
hex#63289a
rgbrgb(99, 40, 154)
hslhsl(271, 59%, 38%)
oklchoklch(0.424 0.175 303.2)
Closest name: rebeccapurple (#663399)Relative luminance 0.065

Colors that go with #63289a

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 →

#5f9a28

#2a289a · #9a2898

#9a6328 · #289a63

Split-complementary

Open in tool →

#989a28 · #289a2a

#9a2a28 · #5f9a28 · #28989a

Contrast

#63289a as textRatioAAAA largeAAAFix
Aaon white
9.13:1passpasspassPasses AAA — no fix needed.
Aaon black
2.3:1failfailfail
  • AA: use #9655d3 as the text (4.54:1)
  • AAA: use #b281df as the text (7.1:1)
  • AA: or shift the background to #b8b8b8 (4.6:1)
  • AAA: or shift the background to #e3e3e3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #63289a 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

#63289a reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #63289a
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 #63289a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/63289a-b59cc4-c7cb62-2c1f2d-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