Color

#27231b

#27231b
hex#27231b
rgbrgb(39, 35, 27)
hslhsl(40, 18%, 13%)
oklchoklch(0.258 0.016 84.5)
Closest name: Underworld (#1e231c)Relative luminance 0.0171

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b1f27

#271d1b · #25271b

#1b2723 · #231b27

Split-complementary

Open in tool →

#1b2527 · #1d1b27

#1b271d · #1b1f27 · #271b25

Contrast

#27231b as textRatioAAAA largeAAAFix
Aaon white
15.64:1passpasspassPasses AAA — no fix needed.
Aaon black
1.34:1failfailfail
  • AA: use #81745a as the text (4.58:1)
  • AAA: use #a3967b as the text (7.21:1)
  • AA: or shift the background to #8a8a8a (4.53:1)
  • AAA: or shift the background to #b0b0b0 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #27231b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#27231b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #27231b
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 #27231b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/27231b-c4bb9c-62b8cb-2c2d1f-f1ebe9?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