Color

#644393

#644393
hex#644393
rgbrgb(100, 67, 147)
hslhsl(265, 37%, 42%)
oklchoklch(0.459 0.128 300.5)
Closest name: Lords of the Night (#664488)Relative luminance 0.0883

Colors that go with #644393

Charcoal, Blue and Crimson 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 →

#729343

#434a93 · #8c4393

#936443 · #439364

Split-complementary

Open in tool →

#938c43 · #4a9343

#93434a · #729343 · #43938c

Contrast

#644393 as textRatioAAAA largeAAAFix
Aaon white
7.59:1passpasspassPasses AAA — no fix needed.
Aaon black
2.77:1failfailfail
  • AA: use #8865b8 as the text (4.6:1)
  • AAA: use #a68cca as the text (7.23:1)
  • AA: or shift the background to #c9c9c9 (4.58:1)
  • AAA: or shift the background to #f7f7f7 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #644393 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

#644393 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #644393
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 #644393 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/644393-b19cc4-dfd54e-2b1f2d-e9eaf1?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