Color

#3b281b

#3b281b
hex#3b281b
rgbrgb(59, 40, 27)
hslhsl(24, 37%, 17%)
oklchoklch(0.296 0.036 55.2)
Closest name: English Walnut (#3e2b23)Relative luminance 0.0253

Colors that go with #3b281b

Charcoal, Dark Olive Green 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.

Real palettes that use #3b281b

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b2f3b

#3b1b1f · #3b381b

#1b3b28 · #281b3b

Split-complementary

Open in tool →

#1b3b38 · #1b1f3b

#1f3b1b · #1b2f3b · #381b3b

Contrast

#3b281b as textRatioAAAA largeAAAFix
Aaon white
13.95:1passpasspassPasses AAA — no fix needed.
Aaon black
1.51:1failfailfail
  • AA: use #9d6a48 as the text (4.59:1)
  • AAA: use #bc8c6c as the text (7.11:1)
  • AA: or shift the background to #949494 (4.6:1)
  • AAA: or shift the background to #b8b8b8 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3b281b as the background.

Brands using this color

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

Palettes built around it

Fonts for this mood

#3b281b reads as warm, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3b281b
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 #3b281b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3b281b-c4b19c-62cbc2-2d2b1f-f1e9ea?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