Color

#b503b2

#b503b2
hex#b503b2
rgbrgb(181, 3, 178)
hslhsl(301, 97%, 36%)
oklchoklch(0.541 0.246 329.2)
Closest name: Magentle (#aa11aa)Relative luminance 0.131

Tints & shades

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

Harmonies

Complementary

Open in tool →

#03b506

#5f03b5 · #b50359

#b2b503 · #03b2b5

Split-complementary

Open in tool →

#59b503 · #03b55f

#b55f03 · #03b506 · #0359b5

Contrast

#b503b2 as textRatioAAAA largeAAAFix
Aaon white
5.8:1passpassfail
  • AAA: use #9c0299 as the text (7.29:1)
Aaon black
3.62:1failpassfail
  • AA: use #d303d0 as the text (4.69:1)
  • AAA: use #fc36f9 as the text (7.03:1)
  • AA: or shift the background to #e3e3e3 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b503b2 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

#b503b2 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b503b2
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 #b503b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b503b2-c19fbc-93cb62-2d1f27-ede9f1?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