Color

#37385c

#37385c
hex#37385c
rgbrgb(55, 56, 92)
hslhsl(238, 25%, 29%)
oklchoklch(0.357 0.062 281.6)
Closest name: Call It a Night (#42364c)Relative luminance 0.0441

Colors that go with #37385c

Steel Blue, Teal and Dark Olive 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 →

#5c5b37

#374b5c · #49375c

#5c3739 · #395c37

Split-complementary

Open in tool →

#5c4937 · #4b5c37

#5c374b · #5c5b37 · #375c49

Contrast

#37385c as textRatioAAAA largeAAAFix
Aaon white
11.15:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #7071a9 as the text (4.62:1)
  • AAA: use #9394be as the text (7.22:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #37385c as the background.

Brands using this color

Fonts for this mood

#37385c reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37385c
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 #37385c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37385c-9f9cc4-df944e-251f2d-e9edf1?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