Color

#383b47

#383b47
hex#383b47
rgbrgb(56, 59, 71)
hslhsl(228, 12%, 25%)
oklchoklch(0.354 0.021 274.2)
Closest name: After Midnight (#38393f)Relative luminance 0.0442

Colors that go with #383b47

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#474438

#384347 · #3d3847

#47383b · #3b4738

Split-complementary

Open in tool →

#473d38 · #434738

#473843 · #474438 · #38473d

Contrast

#383b47 as textRatioAAAA largeAAAFix
Aaon white
11.14:1passpasspassPasses AAA — no fix needed.
Aaon black
1.88:1failfailfail
  • AA: use #6e748c as the text (4.54:1)
  • AAA: use #9297aa as the text (7.23:1)
  • AA: or shift the background to #a6a6a6 (4.58:1)
  • AAA: or shift the background to #cfcfcf (7.15:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #383b47 as the background.

Brands using this color

Fonts for this mood

#383b47 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #383b47
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 #383b47 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/383b47-9c9fc4-df7c4e-231f2d-e9eff1?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