Color

#850aff

#850aff
hex#850aff
rgbrgb(133, 10, 255)
hslhsl(270, 100%, 52%)
oklchoklch(0.538 0.291 295.4)
Closest name: Poisoning Purple (#7f01fe)Relative luminance 0.1242

Tints & shades

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

Harmonies

Complementary

Open in tool →

#85ff0a

#0a0aff · #ff0aff

#ff850a · #0aff85

Split-complementary

Open in tool →

#ffff0a · #0aff0a

#ff0a0a · #85ff0a · #0affff

Contrast

#850aff as textRatioAAAA largeAAAFix
Aaon white
6.03:1passpassfail
  • AAA: use #7500eb as the text (7.1:1)
Aaon black
3.48:1failpassfail
  • AA: use #9e3dff as the text (4.57:1)
  • AAA: use #ba75ff as the text (7.08:1)
  • 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 #850aff as the background.

Brands using this color

Fonts for this mood

#850aff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #850aff
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 #850aff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/850aff-b59cc4-c9cb62-2c1f2d-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