Color

#b41d2f

#b41d2f
hex#b41d2f
rgbrgb(180, 29, 47)
hslhsl(353, 72%, 41%)
oklchoklch(0.499 0.184 21.9)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1079

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1db4a2

#b41d7a · #b4571d

#2fb41d · #1d2fb4

Split-complementary

Open in tool →

#1db457 · #1d7ab4

#7ab41d · #1db4a2 · #571db4

Contrast

#b41d2f as textRatioAAAA largeAAAFix
Aaon white
6.65:1passpassfail
  • AAA: use #ab1c2d as the text (7.15:1)
Aaon black
3.16:1failpassfail
  • AA: use #dd2c41 as the text (4.51:1)
  • AAA: use #e87380 as the text (7.2:1)
  • AA: or shift the background to #d6d6d6 (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 #b41d2f as the background.

Brands using this color

Fonts for this mood

#b41d2f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b41d2f
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 #b41d2f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b41d2f-c49c9c-62cb8c-2d241f-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