Color

#bb3535

#bb3535
hex#bb3535
rgbrgb(187, 53, 53)
hslhsl(0, 56%, 47%)
oklchoklch(0.532 0.171 25.1)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1337

Tints & shades

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

Harmonies

Complementary

Open in tool →

#35bbbb

#bb3578 · #bb7835

#35bb35 · #3535bb

Split-complementary

Open in tool →

#35bb78 · #3578bb

#78bb35 · #35bbbb · #7835bb

Contrast

#bb3535 as textRatioAAAA largeAAAFix
Aaon white
5.72:1passpassfail
  • AAA: use #a32e2e as the text (7.03:1)
Aaon black
3.67:1failpassfail
  • AA: use #cb4848 as the text (4.56:1)
  • AAA: use #da7c7c as the text (7.16:1)
  • AA: or shift the background to #e6e6e6 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb3535 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#bb3535 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb3535
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 #bb3535 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb3535-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