Color

#231b16

#231b16
hex#231b16
rgbrgb(35, 27, 22)
hslhsl(23, 23%, 11%)
oklchoklch(0.23 0.016 53.7)
Closest name: Dark Orchestra (#251b19)Relative luminance 0.012

Colors that go with #231b16

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 →

#161e23

#231617 · #232116

#16231b · #1b1623

Split-complementary

Open in tool →

#162321 · #161723

#172316 · #161e23 · #211623

Contrast

#231b16 as textRatioAAAA largeAAAFix
Aaon white
16.94:1passpasspassPasses AAA — no fix needed.
Aaon black
1.24:1failfailfail
  • AA: use #906f5a as the text (4.61:1)
  • AAA: use #ae917e as the text (7.15:1)
  • AA: or shift the background to #858585 (4.59:1)
  • AAA: or shift the background to #a8a8a8 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #231b16 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#231b16 reads as warm, muted, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #231b16
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 #231b16 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/231b16-c4b09c-62cbc0-2d2b1f-f1e9ea?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