Color

#371c45

#371c45
hex#371c45
rgbrgb(55, 28, 69)
hslhsl(280, 42%, 19%)
oklchoklch(0.284 0.079 312.8)
Closest name: Midnight Velvet (#2a2243)Relative luminance 0.0207

Colors that go with #371c45

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 →

#2a451c

#231c45 · #451c3e

#45371c · #1c4537

Split-complementary

Open in tool →

#3e451c · #1c4523

#45231c · #2a451c · #1c3e45

Contrast

#371c45 as textRatioAAAA largeAAAFix
Aaon white
14.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.41:1failfailfail
  • AA: use #9c5cbc as the text (4.67:1)
  • AAA: use #b484cd as the text (7.12:1)
  • AA: or shift the background to #8f8f8f (4.59:1)
  • AAA: or shift the background to #b3b3b3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #371c45 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#371c45 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #371c45
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 #371c45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/371c45-b99fc1-b8cb62-2d1f2c-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