Color

#321f37

#321f37
hex#321f37
rgbrgb(50, 31, 55)
hslhsl(288, 28%, 17%)
oklchoklch(0.274 0.05 319.1)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0193

Tints & shades

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

Harmonies

Complementary

Open in tool →

#24371f

#261f37 · #371f30

#37331f · #1f3733

Split-complementary

Open in tool →

#30371f · #1f3726

#37261f · #24371f · #1f3037

Contrast

#321f37 as textRatioAAAA largeAAAFix
Aaon white
15.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.39:1failfailfail
  • AA: use #9962a7 as the text (4.66:1)
  • AAA: use #b389bd as the text (7.23:1)
  • AA: or shift the background to #8c8c8c (4.5:1)
  • AAA: or shift the background to #b3b3b3 (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #321f37 as the background.

Brands using this color

Fonts for this mood

#321f37 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #321f37
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 #321f37 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/321f37-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