Color

#730d0d

#730d0d
hex#730d0d
rgbrgb(115, 13, 13)
hslhsl(0, 80%, 25%)
oklchoklch(0.357 0.135 27.5)
Closest name: Blood Brother (#770011)Relative luminance 0.0396

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0d7373

#730d40 · #73400d

#0d730d · #0d0d73

Split-complementary

Open in tool →

#0d7340 · #0d4073

#40730d · #0d7373 · #400d73

Contrast

#730d0d as textRatioAAAA largeAAAFix
Aaon white
11.72:1passpasspassPasses AAA — no fix needed.
Aaon black
1.79:1failfailfail
  • AA: use #e61919 as the text (4.52:1)
  • AAA: use #ef6c6c as the text (7.03:1)
  • AA: or shift the background to #a1a1a1 (4.53:1)
  • AAA: or shift the background to #c9c9c9 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #730d0d 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

#730d0d reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #730d0d
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 #730d0d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/730d0d-c4a19c-62cb98-2d251f-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