Color

#230b01

#230b01
hex#230b01
rgbrgb(35, 11, 1)
hslhsl(18, 94%, 7%)
oklchoklch(0.186 0.047 48.2)
Closest name: Italian Roast (#221111)Relative luminance 0.006

Tints & shades

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

Harmonies

Complementary

Open in tool →

#011923

#230108 · #231c01

#01230b · #0b0123

Split-complementary

Open in tool →

#01231c · #010823

#082301 · #011923 · #1c0123

Contrast

#230b01 as textRatioAAAA largeAAAFix
Aaon white
18.75:1passpasspassPasses AAA — no fix needed.
Aaon black
1.12:1failfailfail
  • AA: use #d54407 as the text (4.66:1)
  • AAA: use #f8682a as the text (7:1)
  • AA: or shift the background to #7d7d7d (4.56:1)
  • AAA: or shift the background to #a1a1a1 (7.26:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #230b01 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#230b01 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #230b01
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 #230b01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/230b01-c4ad9c-62cbb8-2d291f-f1e9eb?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