Color

#820b03

#820b03
hex#820b03
rgbrgb(130, 11, 3)
hslhsl(4, 95%, 26%)
oklchoklch(0.386 0.151 30)
Closest name: maroon (#800000)Relative luminance 0.0499

Tints & shades

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

Harmonies

Complementary

Open in tool →

#037981

#81033a · #814b03

#03810c · #0c0381

Split-complementary

Open in tool →

#03814b · #033a81

#3a8103 · #037981 · #4b0381

Contrast

#820b03 as textRatioAAAA largeAAAFix
Aaon white
10.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #ea1506 as the text (4.61:1)
  • AAA: use #fb665b as the text (7.15:1)
  • AA: or shift the background to #ababab (4.58:1)
  • AAA: or shift the background to #d4d4d4 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #820b03 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

#820b03 reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #820b03
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 #820b03 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/820b03-c4a39c-62cb9f-2d261f-f1e9ed?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