Color

#901aff

#901aff
hex#901aff
rgbrgb(144, 26, 255)
hslhsl(271, 100%, 55%)
oklchoklch(0.556 0.287 298.5)
Closest name: Cosmic Heart (#9601f4)Relative luminance 0.1389

Tints & shades

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

Harmonies

Complementary

Open in tool →

#88ff1a

#1d1aff · #ff1afb

#ff901a · #1aff90

Split-complementary

Open in tool →

#fbff1a · #1aff1d

#ff1d1a · #88ff1a · #1afbff

Contrast

#901aff as textRatioAAAA largeAAAFix
Aaon white
5.56:1passpassfail
  • AAA: use #7700e6 as the text (7.17:1)
Aaon black
3.78:1failpassfail
  • AA: use #a13dff as the text (4.63:1)
  • AAA: use #bc75ff as the text (7.13:1)
  • AA: or shift the background to #e8e8e8 (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 #901aff as the background.

Brands using this color

Fonts for this mood

#901aff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #901aff
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 #901aff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/901aff-b59cc4-c7cb62-2c1f2d-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