Color

#384d57

#384d57
hex#384d57
rgbrgb(56, 77, 87)
hslhsl(199, 22%, 28%)
oklchoklch(0.407 0.031 228.8)
Closest name: Abyssal (#404c57)Relative luminance 0.0684

Colors that go with #384d57

Steel Blue, Teal and Sienna 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 →

#574238

#385751 · #383d57

#57384d · #4d5738

Split-complementary

Open in tool →

#57383d · #575138

#513857 · #574238 · #3d5738

Contrast

#384d57 as textRatioAAAA largeAAAFix
Aaon white
8.87:1passpasspassPasses AAA — no fix needed.
Aaon black
2.37:1failfailfail
  • AA: use #587989 as the text (4.51:1)
  • AAA: use #799aa9 as the text (7.01:1)
  • AA: or shift the background to #bababa (4.57:1)
  • AAA: or shift the background to #e6e6e6 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #384d57 as the background.

Brands using this color

Fonts for this mood

#384d57 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #384d57
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 #384d57 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/384d57-9cb3c4-df4e66-1f232d-e9f1f0?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