Color

#373e49

#373e49
hex#373e49
rgbrgb(55, 62, 73)
hslhsl(217, 14%, 25%)
oklchoklch(0.362 0.021 259.4)
Closest name: After Midnight (#38393f)Relative luminance 0.0474

Colors that go with #373e49

Amber, Blue and Blush Pink 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.

Real palettes that use #373e49

Tints & shades

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

Harmonies

Complementary

Open in tool →

#494237

#374749 · #393749

#49373e · #3e4937

Split-complementary

Open in tool →

#493937 · #474937

#493747 · #494237 · #374939

Contrast

#373e49 as textRatioAAAA largeAAAFix
Aaon white
10.78:1passpasspassPasses AAA — no fix needed.
Aaon black
1.95:1failfailfail
  • AA: use #69768c as the text (4.57:1)
  • AAA: use #8b96a7 as the text (7.02:1)
  • AA: or shift the background to #a8a8a8 (4.53:1)
  • AAA: or shift the background to #d1d1d1 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #373e49 as the background.

Brands using this color

Fonts for this mood

#373e49 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #373e49
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 #373e49 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/373e49-9ca7c4-df624e-201f2d-e9f0f1?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