Color

#371f41

#371f41
hex#371f41
rgbrgb(55, 31, 65)
hslhsl(282, 35%, 19%)
oklchoklch(0.287 0.067 315.3)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0217

Colors that go with #371f41

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 →

#2a411f

#261f41 · #411f3b

#41371f · #1f4137

Split-complementary

Open in tool →

#3b411f · #1f4126

#41261f · #2a411f · #1f3b41

Contrast

#371f41 as textRatioAAAA largeAAAFix
Aaon white
14.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #985db1 as the text (4.54:1)
  • AAA: use #b287c5 as the text (7.16:1)
  • AA: or shift the background to #8f8f8f (4.53:1)
  • AAA: or shift the background to #b5b5b5 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #371f41 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

#371f41 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #371f41
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 #371f41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/371f41-ba9fc1-b4cb62-2d1f2b-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