Color

#3e375d

#3e375d
hex#3e375d
rgbrgb(62, 55, 93)
hslhsl(251, 26%, 29%)
oklchoklch(0.362 0.065 291.3)
Closest name: Call It a Night (#42364c)Relative luminance 0.0455

Colors that go with #3e375d

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 →

#565d37

#37435d · #51375d

#5d3e37 · #375d3e

Split-complementary

Open in tool →

#5d5137 · #435d37

#5d3743 · #565d37 · #375d51

Contrast

#3e375d as textRatioAAAA largeAAAFix
Aaon white
11:1passpasspassPasses AAA — no fix needed.
Aaon black
1.91:1failfailfail
  • AA: use #796eaa as the text (4.62:1)
  • AAA: use #9a92bf as the text (7.24:1)
  • AA: or shift the background to #a6a6a6 (4.52:1)
  • AAA: or shift the background to #cfcfcf (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 #3e375d as the background.

Brands using this color

Fonts for this mood

#3e375d reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3e375d
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 #3e375d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3e375d-a89cc4-dfb34e-281f2d-e9ecf1?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