Color

#900ffa

#900ffa
hex#900ffa
rgbrgb(144, 15, 250)
hslhsl(273, 96%, 52%)
oklchoklch(0.548 0.287 299.8)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1317

Tints & shades

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

Harmonies

Complementary

Open in tool →

#79fa0f

#1b0ffa · #fa0fee

#fa900f · #0ffa90

Split-complementary

Open in tool →

#eefa0f · #0ffa1b

#fa1b0f · #79fa0f · #0feefa

Contrast

#900ffa as textRatioAAAA largeAAAFix
Aaon white
5.78:1passpassfail
  • AAA: use #7e05e1 as the text (7.01:1)
Aaon black
3.63:1failpassfail
  • AA: use #a53cfb as the text (4.64:1)
  • AAA: use #be73fc as the text (7.05:1)
  • AA: or shift the background to #e3e3e3 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #900ffa as the background.

Brands using this color

Fonts for this mood

#900ffa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #900ffa
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 #900ffa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/900ffa-b79cc4-c4cb62-2d1f2d-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