Color

#231c1b

#231c1b
hex#231c1b
rgbrgb(35, 28, 27)
hslhsl(7, 13%, 12%)
oklchoklch(0.234 0.011 27.5)
Closest name: Dark Orchestra (#251b19)Relative luminance 0.0127

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1b2223

#231b1e · #23201b

#1b231c · #1c1b23

Split-complementary

Open in tool →

#1b2320 · #1b1e23

#1e231b · #1b2223 · #201b23

Contrast

#231c1b as textRatioAAAA largeAAAFix
Aaon white
16.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.25:1failfailfail
  • AA: use #8a6e6a as the text (4.52:1)
  • AAA: use #a8928f as the text (7.17:1)
  • AA: or shift the background to #858585 (4.54:1)
  • AAA: or shift the background to #a8a8a8 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231c1b as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#231c1b reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231c1b
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 #231c1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231c1b-c4a59c-62cba4-2d271f-f1e9ec?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