Color

#901dd3

#901dd3
hex#901dd3
rgbrgb(144, 29, 211)
hslhsl(278, 76%, 47%)
oklchoklch(0.52 0.248 307.7)
Closest name: darkviolet (#9400d3)Relative luminance 0.1151

Colors that go with #901dd3

Denim, Olive Drab and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#60d31d

#351dd3 · #d31dbb

#d3901d · #1dd390

Split-complementary

Open in tool →

#bbd31d · #1dd335

#d3351d · #60d31d · #1dbbd3

Contrast

#901dd3 as textRatioAAAA largeAAAFix
Aaon white
6.36:1passpassfail
  • AAA: use #871bc5 as the text (7.02:1)
Aaon black
3.3:1failpassfail
  • AA: use #aa43e5 as the text (4.64:1)
  • AAA: use #c278ed as the text (7.2:1)
  • AA: or shift the background to #d9d9d9 (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #901dd3 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

#901dd3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #901dd3
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #901dd3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/901dd3-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