Color

#394351

#394351
hex#394351
rgbrgb(57, 67, 81)
hslhsl(215, 17%, 27%)
oklchoklch(0.38 0.027 256.8)
Closest name: Charcoal (#36454f)Relative luminance 0.0548

Colors that go with #394351

Blue, Blush Pink and Burlywood 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 →

#514739

#394f51 · #3b3951

#513943 · #435139

Split-complementary

Open in tool →

#513b39 · #4f5139

#51394f · #514739 · #39513b

Contrast

#394351 as textRatioAAAA largeAAAFix
Aaon white
10.02:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #66778f as the text (4.6:1)
  • AAA: use #8b99ac as the text (7.25:1)
  • AA: or shift the background to #b0b0b0 (4.62:1)
  • AAA: or shift the background to #d9d9d9 (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #394351 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#394351 reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #394351
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 #394351 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/394351-9ca8c4-df5d4e-201f2d-e9f0f1?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