Color

#850bcb

#850bcb
hex#850bcb
rgbrgb(133, 11, 203)
hslhsl(278, 90%, 42%)
oklchoklch(0.491 0.248 306.3)
Closest name: Lilac Spring (#8822cc)Relative luminance 0.0954

Tints & shades

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

Harmonies

Complementary

Open in tool →

#51cb0b

#240bcb · #cb0bb2

#cb850b · #0bcb85

Split-complementary

Open in tool →

#b2cb0b · #0bcb24

#cb240b · #51cb0b · #0bb2cb

Contrast

#850bcb as textRatioAAAA largeAAAFix
Aaon white
7.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.91:1failfailfail
  • AA: use #ae34f4 as the text (4.6:1)
  • AAA: use #c772f8 as the text (7.19:1)
  • AA: or shift the background to #cfcfcf (4.64:1)
  • AAA: or shift the background to #fcfcfc (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #850bcb 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

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

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

tool url/palettes/new/850bcb-ba9cc4-bbcb62-2d1f2c-ebe9f1?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