Color

#640bea

#640bea
hex#640bea
rgbrgb(100, 11, 234)
hslhsl(264, 91%, 48%)
oklchoklch(0.482 0.272 287.7)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0889

Tints & shades

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

Harmonies

Complementary

Open in tool →

#91ea0b

#0b21ea · #d40bea

#ea640b · #0bea64

Split-complementary

Open in tool →

#ead40b · #21ea0b

#ea0b21 · #91ea0b · #0bead4

Contrast

#640bea as textRatioAAAA largeAAAFix
Aaon white
7.56:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #8f4bf7 as the text (4.52:1)
  • AAA: use #ae7bf9 as the text (7:1)
  • AA: or shift the background to #c9c9c9 (4.57:1)
  • AAA: or shift the background to #f7f7f7 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #640bea 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

#640bea reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #640bea
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 #640bea and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/640bea-b19cc4-dfd34e-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