Color

#646add

#646add
hex#646add
rgbrgb(100, 106, 221)
hslhsl(237, 64%, 63%)
oklchoklch(0.579 0.172 277.3)
Closest name: Arcane Brew (#5260e1)Relative luminance 0.1824

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddd764

#64a7dd · #9b64dd

#dd646a · #6add64

Split-complementary

Open in tool →

#dd9b64 · #a7dd64

#dd64a7 · #ddd764 · #64dd9b

Contrast

#646add as textRatioAAAA largeAAAFix
Aaon white
4.52:1passpassfail
  • AAA: use #3a42d4 as the text (7.22:1)
Aaon black
4.65:1passpassfail
  • AAA: use #8a8ee5 as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #646add as the background.

Brands using this color

Fonts for this mood

#646add reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #646add
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 #646add and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/646add-9f9cc4-df924e-251f2d-e9edf1?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