Color

#830d0b

#830d0b
hex#830d0b
rgbrgb(131, 13, 11)
hslhsl(1, 85%, 28%)
oklchoklch(0.39 0.15 28.4)
Closest name: Bloodthirsty (#880011)Relative luminance 0.0514

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0b8284

#840b45 · #84490b

#0b840d · #0d0b84

Split-complementary

Open in tool →

#0b8449 · #0b4584

#45840b · #0b8284 · #490b84

Contrast

#830d0b as textRatioAAAA largeAAAFix
Aaon white
10.36:1passpasspassPasses AAA — no fix needed.
Aaon black
2.03:1failfailfail
  • AA: use #e71613 as the text (4.52:1)
  • AAA: use #f36a68 as the text (7.07:1)
  • AA: or shift the background to #ababab (4.51:1)
  • AAA: or shift the background to #d6d6d6 (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #830d0b 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

#830d0b reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #830d0b
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 #830d0b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/830d0b-c4a19c-62cb9a-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