Color

#321f42

#321f42
hex#321f42
rgbrgb(50, 31, 66)
hslhsl(273, 36%, 19%)
oklchoklch(0.281 0.066 307.7)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0205

Colors that go with #321f42

Charcoal, Dark Olive Green and Sienna 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 →

#2f421f

#211f42 · #421f40

#42321f · #1f4232

Split-complementary

Open in tool →

#40421f · #1f4221

#42211f · #2f421f · #1f4042

Contrast

#321f42 as textRatioAAAA largeAAAFix
Aaon white
14.89:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #9063b6 as the text (4.65:1)
  • AAA: use #ab89c8 as the text (7.14:1)
  • AA: or shift the background to #8f8f8f (4.6:1)
  • AAA: or shift the background to #b3b3b3 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #321f42 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#321f42 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #321f42
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 #321f42 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/321f42-b79cc4-c4cb62-2d1f2d-eae9f1?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