Color

#3a030b

#3a030b
hex#3a030b
rgbrgb(58, 3, 11)
hslhsl(351, 90%, 12%)
oklchoklch(0.225 0.084 19)
Closest name: English Breakfast (#441111)Relative luminance 0.0099

Tints & shades

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

Harmonies

Complementary

Open in tool →

#033a32

#3a0327 · #3a1603

#0b3a03 · #030b3a

Split-complementary

Open in tool →

#033a16 · #03273a

#273a03 · #033a32 · #16033a

Contrast

#3a030b as textRatioAAAA largeAAAFix
Aaon white
17.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.2:1failfailfail
  • AA: use #e90c2d as the text (4.56:1)
  • AAA: use #f7647a as the text (7.06:1)
  • AA: or shift the background to #828282 (4.56:1)
  • AAA: or shift the background to #a6a6a6 (7.2:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3a030b 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

#3a030b reads as warm, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3a030b
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 #3a030b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3a030b-c49c9e-62cb89-2d231f-f1e9ee?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