Color

#b31fe0

#b31fe0
hex#b31fe0
rgbrgb(179, 31, 224)
hslhsl(286, 76%, 50%)
oklchoklch(0.578 0.267 315.9)
Closest name: Ferocious Fuchsia (#aa00cc)Relative luminance 0.1595

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4ce01f

#521fe0 · #e01fad

#e0b31f · #1fe0b3

Split-complementary

Open in tool →

#ade01f · #1fe052

#e0521f · #4ce01f · #1fade0

Contrast

#b31fe0 as textRatioAAAA largeAAAFix
Aaon white
5.01:1passpassfail
  • AAA: use #8f18b4 as the text (7.1:1)
Aaon black
4.19:1failpassfail
  • AA: use #b931e3 as the text (4.61:1)
  • AAA: use #ce6feb as the text (7.1:1)
  • AA: or shift the background to #f5f5f5 (4.6:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b31fe0 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

#b31fe0 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b31fe0
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 #b31fe0 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b31fe0-bd9fc1-adcb62-2d1f2a-ece9f1?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