Color

#bb0c35

#bb0c35
hex#bb0c35
rgbrgb(187, 12, 53)
hslhsl(346, 88%, 39%)
oklchoklch(0.505 0.198 18.7)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1108

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0cbb92

#bb0c8c · #bb3b0c

#35bb0c · #0c35bb

Split-complementary

Open in tool →

#0cbb3b · #0c8cbb

#8cbb0c · #0cbb92 · #3b0cbb

Contrast

#bb0c35 as textRatioAAAA largeAAAFix
Aaon white
6.53:1passpassfail
  • AAA: use #b10b32 as the text (7.09:1)
Aaon black
3.22:1failpassfail
  • AA: use #e60f41 as the text (4.51:1)
  • AAA: use #f56687 as the text (7.13:1)
  • AA: or shift the background to #d9d9d9 (4.62:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb0c35 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

#bb0c35 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb0c35
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 #bb0c35 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb0c35-c49ca1-62cb80-2d221f-f1e9ef?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