Color

#911ff4

#911ff4
hex#911ff4
rgbrgb(145, 31, 244)
hslhsl(272, 91%, 54%)
oklchoklch(0.55 0.275 300.8)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1353

Tints & shades

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

Harmonies

Complementary

Open in tool →

#83f41f

#261ff4 · #f41fed

#f4911f · #1ff491

Split-complementary

Open in tool →

#edf41f · #1ff426

#f4261f · #83f41f · #1fedf4

Contrast

#911ff4 as textRatioAAAA largeAAAFix
Aaon white
5.67:1passpassfail
  • AAA: use #7c0be0 as the text (7.04:1)
Aaon black
3.71:1failpassfail
  • AA: use #a241f6 as the text (4.62:1)
  • AAA: use #bc77f9 as the text (7.14:1)
  • AA: or shift the background to #e6e6e6 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #911ff4 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

#911ff4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #911ff4
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 #911ff4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/911ff4-b69cc4-c5cb62-2d1f2d-eae9f1?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