Color

#900bef

#900bef
hex#900bef
rgbrgb(144, 11, 239)
hslhsl(275, 91%, 49%)
oklchoklch(0.537 0.279 302)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.124

Tints & shades

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

Harmonies

Complementary

Open in tool →

#6aef0b

#1e0bef · #ef0bdc

#ef900b · #0bef90

Split-complementary

Open in tool →

#dcef0b · #0bef1e

#ef1e0b · #6aef0b · #0bdcef

Contrast

#900bef as textRatioAAAA largeAAAFix
Aaon white
6.03:1passpassfail
  • AAA: use #810ad6 as the text (7.12:1)
Aaon black
3.48:1failpassfail
  • AA: use #a83cf6 as the text (4.64:1)
  • AAA: use #c072f8 as the text (7:1)
  • AA: or shift the background to #e0e0e0 (4.57:1)

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

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

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

tool url/palettes/new/900bef-b89cc4-c0cb62-2d1f2d-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