Color

#281b22

#281b22
hex#281b22
rgbrgb(40, 27, 34)
hslhsl(328, 19%, 13%)
oklchoklch(0.241 0.024 345.5)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0135

Colors that go with #281b22

Charcoal, Amber and Blue 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 →

#1b2721

#271b27 · #271b1b

#22271b · #1b2227

Split-complementary

Open in tool →

#1b271b · #1b2727

#27271b · #1b2721 · #1b1b27

Contrast

#281b22 as textRatioAAAA largeAAAFix
Aaon white
16.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.27:1failfailfail
  • AA: use #986781 as the text (4.59:1)
  • AAA: use #b18c9f as the text (7.12:1)
  • AA: or shift the background to #878787 (4.6:1)
  • AAA: or shift the background to #ababab (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281b22 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#281b22 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281b22
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 #281b22 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281b22-c19fad-64cb62-2d1f21-f1e9f1?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