Color

#bc103b

#bc103b
hex#bc103b
rgbrgb(188, 16, 59)
hslhsl(345, 84%, 40%)
oklchoklch(0.51 0.197 16.9)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1138

Tints & shades

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

Harmonies

Complementary

Open in tool →

#10bc91

#bc1091 · #bc3b10

#3bbc10 · #103bbc

Split-complementary

Open in tool →

#10bc3b · #1091bc

#91bc10 · #10bc91 · #3b10bc

Contrast

#bc103b as textRatioAAAA largeAAAFix
Aaon white
6.41:1passpassfail
  • AAA: use #ae0f37 as the text (7.18:1)
Aaon black
3.28:1failpassfail
  • AA: use #e61448 as the text (4.56:1)
  • AAA: use #f2698b as the text (7.17:1)
  • AA: or shift the background to #d9d9d9 (4.54:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bc103b 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

#bc103b reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bc103b
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 #bc103b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bc103b-c49ca1-62cb7e-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