Color

#b51ca8

#b51ca8
hex#b51ca8
rgbrgb(181, 28, 168)
hslhsl(305, 73%, 41%)
oklchoklch(0.543 0.229 332.3)
Closest name: Amora Purple (#bb22aa)Relative luminance 0.1348

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1cb529

#751cb5 · #b51c5c

#a8b51c · #1ca8b5

Split-complementary

Open in tool →

#5cb51c · #1cb575

#b5751c · #1cb529 · #1c5cb5

Contrast

#b51ca8 as textRatioAAAA largeAAAFix
Aaon white
5.68:1passpassfail
  • AAA: use #9a1890 as the text (7.22:1)
Aaon black
3.7:1failpassfail
  • AA: use #cf20c1 as the text (4.63:1)
  • AAA: use #e660db as the text (7.06:1)
  • AA: or shift the background to #e6e6e6 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b51ca8 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

#b51ca8 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b51ca8
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 #b51ca8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b51ca8-c19fba-8ccb62-2d1f26-eee9f1?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