Color

#6403e2

#6403e2
hex#6403e2
rgbrgb(100, 3, 226)
hslhsl(266, 97%, 45%)
oklchoklch(0.471 0.267 289.2)
Closest name: Electric Indigo (#6600ff)Relative luminance 0.0827

Tints & shades

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

Harmonies

Complementary

Open in tool →

#82e203

#0312e2 · #d303e2

#e26403 · #03e264

Split-complementary

Open in tool →

#e2d303 · #12e203

#e20312 · #82e203 · #03e2d3

Contrast

#6403e2 as textRatioAAAA largeAAAFix
Aaon white
7.92:1passpasspassPasses AAA — no fix needed.
Aaon black
2.65:1failfailfail
  • AA: use #9445fc as the text (4.52:1)
  • AAA: use #b47cfd as the text (7.24:1)
  • AA: or shift the background to #c4c4c4 (4.54:1)
  • AAA: or shift the background to #f2f2f2 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #6403e2 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

#6403e2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #6403e2
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 #6403e2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6403e2-b29cc4-dfd74e-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