Color

#851981

#851981
hex#851981
rgbrgb(133, 25, 129)
hslhsl(302, 68%, 31%)
oklchoklch(0.441 0.181 329.8)
Closest name: Noble Plum (#871f78)Relative luminance 0.0727

Tints & shades

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

Harmonies

Complementary

Open in tool →

#19851d

#531985 · #85194b

#818519 · #198185

Split-complementary

Open in tool →

#4b8519 · #198553

#855319 · #19851d · #194b85

Contrast

#851981 as textRatioAAAA largeAAAFix
Aaon white
8.56:1passpasspassPasses AAA — no fix needed.
Aaon black
2.45:1failfailfail
  • AA: use #c926c4 as the text (4.56:1)
  • AAA: use #e265dd as the text (7.14:1)
  • AA: or shift the background to #bdbdbd (4.56:1)
  • AAA: or shift the background to #ebebeb (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #851981 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

#851981 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #851981
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 #851981 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/851981-c19fbc-91cb62-2d1f27-eee9f1?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