Color

#b133fa

#b133fa
hex#b133fa
rgbrgb(177, 51, 250)
hslhsl(278, 95%, 59%)
oklchoklch(0.607 0.273 308.8)
Closest name: Magento (#bf3cff)Relative luminance 0.1862

Tints & shades

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

Harmonies

Complementary

Open in tool →

#7cfa33

#4e33fa · #fa33df

#fab133 · #33fab1

Split-complementary

Open in tool →

#dffa33 · #33fa4e

#fa4e33 · #7cfa33 · #33dffa

Contrast

#b133fa as textRatioAAAA largeAAAFix
Aaon white
4.45:1failpassfail
  • AA: use #af2efa as the text (4.57:1)
  • AAA: use #8605d1 as the text (7.1:1)
  • AA: or shift the background to #080808 (4.5:1)
Aaon black
4.72:1passpassfail
  • AAA: use #c86ffb as the text (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b133fa 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

#b133fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b133fa
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 #b133fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b133fa-ba9cc4-bbcb62-2d1f2c-ebe9f1?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