Color

#421e48

#421e48
hex#421e48
rgbrgb(66, 30, 72)
hslhsl(291, 41%, 20%)
oklchoklch(0.305 0.085 321.7)
Closest name: Velvet Cosmos (#441144)Relative luminance 0.0255

Colors that go with #421e48

Charcoal, Dark Olive Green and Sea Green 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 →

#24481e

#2d1e48 · #481e39

#48421e · #1e4842

Split-complementary

Open in tool →

#39481e · #1e482d

#482d1e · #24481e · #1e3948

Contrast

#421e48 as textRatioAAAA largeAAAFix
Aaon white
13.9:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #a852b7 as the text (4.56:1)
  • AAA: use #be7ec9 as the text (7.02:1)
  • AA: or shift the background to #949494 (4.58:1)
  • AAA: or shift the background to #b8b8b8 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #421e48 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

#421e48 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #421e48
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 #421e48 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/421e48-bf9fc1-a4cb62-2d1f29-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