Color

#280b01

#280b01
hex#280b01
rgbrgb(40, 11, 1)
hslhsl(15, 95%, 8%)
oklchoklch(0.196 0.054 43.9)
Closest name: Italian Roast (#221111)Relative luminance 0.0069

Tints & shades

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

Harmonies

Complementary

Open in tool →

#011e28

#28010b · #281e01

#01280b · #0b0128

Split-complementary

Open in tool →

#01281e · #010b28

#0b2801 · #011e28 · #1e0128

Contrast

#280b01 as textRatioAAAA largeAAAFix
Aaon white
18.44:1passpasspassPasses AAA — no fix needed.
Aaon black
1.14:1failfailfail
  • AA: use #db3b06 as the text (4.64:1)
  • AAA: use #fa6938 as the text (7.14:1)
  • AA: or shift the background to #808080 (4.67:1)
  • AAA: or shift the background to #a1a1a1 (7.14:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #280b01 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

#280b01 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #280b01
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 #280b01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/280b01-c4ab9c-62cbb2-2d291f-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