Color

#644398

#644398
hex#644398
rgbrgb(100, 67, 152)
hslhsl(263, 39%, 43%)
oklchoklch(0.462 0.135 299)
Closest name: Lords of the Night (#664488)Relative luminance 0.0899

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#789843

#434d98 · #8e4398

#986443 · #439864

Split-complementary

Open in tool →

#988e43 · #4d9843

#98434d · #789843 · #43988e

Contrast

#644398 as textRatioAAAA largeAAAFix
Aaon white
7.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2.8:1failfailfail
  • AA: use #8767bc as the text (4.7:1)
  • AAA: use #a38acc as the text (7.06:1)
  • AA: or shift the background to #c9c9c9 (4.53:1)
  • AAA: or shift the background to #f7f7f7 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #644398 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

#644398 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #644398
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #644398 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/644398-b09cc4-dfd04e-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