Color

#3a474b

#3a474b
hex#3a474b
rgbrgb(58, 71, 75)
hslhsl(194, 13%, 26%)
oklchoklch(0.388 0.018 218.4)
Closest name: Arsenic (#3b444b)Relative luminance 0.0591

Colors that go with #3a474b

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.

Real palettes that use #3a474b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4b3e3a

#3a4b46 · #3a3e4b

#4b3a47 · #474b3a

Split-complementary

Open in tool →

#4b3a3e · #4b463a

#463a4b · #4b3e3a · #3e4b3a

Contrast

#3a474b as textRatioAAAA largeAAAFix
Aaon white
9.62:1passpasspassPasses AAA — no fix needed.
Aaon black
2.18:1failfailfail
  • AA: use #62787f as the text (4.51:1)
  • AAA: use #8399a0 as the text (7.03:1)
  • AA: or shift the background to #b3b3b3 (4.59:1)
  • AAA: or shift the background to #dedede (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 #3a474b 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

#3a474b reads as cool, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a474b
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 #3a474b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a474b-9cb6c4-df4e72-1f242d-e9f1ef?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