Color

#6447cd

#6447cd
hex#6447cd
rgbrgb(100, 71, 205)
hslhsl(253, 57%, 54%)
oklchoklch(0.508 0.197 287.1)
Closest name: Blurple (#5539cc)Relative luminance 0.1162

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b0cd47

#476dcd · #a747cd

#cd6447 · #47cd64

Split-complementary

Open in tool →

#cda747 · #6dcd47

#cd476d · #b0cd47 · #47cda7

Contrast

#6447cd as textRatioAAAA largeAAAFix
Aaon white
6.32:1passpassfail
  • AAA: use #5a3bc9 as the text (7.23:1)
Aaon black
3.32:1failpassfail
  • AA: use #7b63d4 as the text (4.58:1)
  • AAA: use #9d8bdf as the text (7.19:1)
  • AA: or shift the background to #dbdbdb (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6447cd as the background.

Brands using this color

Fonts for this mood

#6447cd reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6447cd
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 #6447cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6447cd-a99cc4-dfb84e-281f2d-e9ebf1?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