Color

#37365e

#37365e
hex#37365e
rgbrgb(55, 54, 94)
hslhsl(242, 27%, 29%)
oklchoklch(0.354 0.069 283.4)
Closest name: Call It a Night (#42364c)Relative luminance 0.0426

Colors that go with #37365e

Sea Green, Steel Blue and Teal 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 →

#5d5e36

#36495e · #4b365e

#5e3736 · #365e37

Split-complementary

Open in tool →

#5e4b36 · #495e36

#5e3649 · #5d5e36 · #365e4b

Contrast

#37365e as textRatioAAAA largeAAAFix
Aaon white
11.34:1passpasspassPasses AAA — no fix needed.
Aaon black
1.85:1failfailfail
  • AA: use #7371ad as the text (4.69:1)
  • AAA: use #9291c0 as the text (7.03:1)
  • AA: or shift the background to #a6a6a6 (4.66:1)
  • AAA: or shift the background to #cccccc (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 #37365e as the background.

Brands using this color

Fonts for this mood

#37365e reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #37365e
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 #37365e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/37365e-a29cc4-df9e4e-261f2d-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