Color

#281101

#281101
hex#281101
rgbrgb(40, 17, 1)
hslhsl(25, 95%, 8%)
oklchoklch(0.208 0.048 56.5)
Closest name: Noir Mystique (#1f180a)Relative luminance 0.0085

Tints & shades

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

Harmonies

Complementary

Open in tool →

#011828

#280104 · #282501

#012811 · #110128

Split-complementary

Open in tool →

#012825 · #010428

#042801 · #011828 · #250128

Contrast

#281101 as textRatioAAAA largeAAAFix
Aaon white
17.94:1passpasspassPasses AAA — no fix needed.
Aaon black
1.17:1failfailfail
  • AA: use #c25405 as the text (4.56:1)
  • AAA: use #f96b06 as the text (7.13:1)
  • AA: or shift the background to #808080 (4.54:1)
  • AAA: or shift the background to #a3a3a3 (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #281101 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

#281101 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #281101
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 #281101 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/281101-c4b19c-62cbc4-2d2b1f-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