Color

#2b2129

#2b2129
hex#2b2129
rgbrgb(43, 33, 41)
hslhsl(312, 13%, 15%)
oklchoklch(0.263 0.021 333.1)
Closest name: Anthracite (#28282d)Relative luminance 0.0176

Tints & shades

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

Harmonies

Complementary

Open in tool →

#212b23

#28212b · #2b2124

#292b21 · #21292b

Split-complementary

Open in tool →

#242b21 · #212b28

#2b2821 · #212b23 · #21242b

Contrast

#2b2129 as textRatioAAAA largeAAAFix
Aaon white
15.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.35:1failfailfail
  • AA: use #8d6d87 as the text (4.67:1)
  • AAA: use #a88fa3 as the text (7.12:1)
  • AA: or shift the background to #8c8c8c (4.62:1)
  • AAA: or shift the background to #b0b0b0 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2b2129 as the background.

Brands using this color

Fonts for this mood

#2b2129 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2b2129
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #2b2129 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2b2129-c19fb6-80cb62-2d1f24-efe9f1?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