Color

#a421c4

#a421c4
hex#a421c4
rgbrgb(164, 33, 196)
hslhsl(288, 71%, 45%)
oklchoklch(0.538 0.239 318.3)
Closest name: Magentleman (#aa22bb)Relative luminance 0.1297

Colors that go with #a421c4

Forest Green, Sea Green 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 →

#42c421

#5221c4 · #c42193

#c4a421 · #21c4a4

Split-complementary

Open in tool →

#93c421 · #21c452

#c45221 · #42c421 · #2193c4

Contrast

#a421c4 as textRatioAAAA largeAAAFix
Aaon white
5.84:1passpassfail
  • AAA: use #8e1daa as the text (7.23:1)
Aaon black
3.59:1failpassfail
  • AA: use #ba32dc as the text (4.58:1)
  • AAA: use #cf6fe7 as the text (7.08:1)
  • AA: or shift the background to #e3e3e3 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a421c4 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

#a421c4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a421c4
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 #a421c4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a421c4-be9fc1-aacb62-2d1f2a-ece9f1?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