Color

#2a181f

#2a181f
hex#2a181f
rgbrgb(42, 24, 31)
hslhsl(337, 27%, 13%)
oklchoklch(0.236 0.031 354.8)
Closest name: Black Cherry (#2c1620)Relative luminance 0.0124

Tints & shades

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

Harmonies

Complementary

Open in tool →

#182a23

#2a1828 · #2a1a18

#1f2a18 · #181f2a

Split-complementary

Open in tool →

#182a1a · #18282a

#282a18 · #182a23 · #1a182a

Contrast

#2a181f as textRatioAAAA largeAAAFix
Aaon white
16.81:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #a4607a as the text (4.53:1)
  • AAA: use #ba879b as the text (7.03:1)
  • AA: or shift the background to #858585 (4.56:1)
  • AAA: or shift the background to #a8a8a8 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #2a181f as the background.

Brands using this color

Fonts for this mood

#2a181f reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #2a181f
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 #2a181f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/2a181f-c49ca7-62cb70-2d201f-f1e9f0?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