Color

#5b04cd

#5b04cd
hex#5b04cd
rgbrgb(91, 4, 205)
hslhsl(266, 96%, 41%)
oklchoklch(0.44 0.247 289.5)
Closest name: Blurple (#5539cc)Relative luminance 0.0672

Tints & shades

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

Harmonies

Complementary

Open in tool →

#76cd04

#0412cd · #c004cd

#cd5b04 · #04cd5b

Split-complementary

Open in tool →

#cdc004 · #12cd04

#cd0412 · #76cd04 · #04cdc0

Contrast

#5b04cd as textRatioAAAA largeAAAFix
Aaon white
8.96:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #9546fb as the text (4.55:1)
  • AAA: use #b47dfc as the text (7.28:1)
  • AA: or shift the background to #b8b8b8 (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5b04cd as the background.

Brands using this color

Fonts for this mood

#5b04cd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5b04cd
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 #5b04cd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5b04cd-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