Color

#b54545

#b54545
hex#b54545
rgbrgb(181, 69, 69)
hslhsl(0, 45%, 49%)
oklchoklch(0.543 0.146 23.3)
Closest name: Barbarossa (#a84734)Relative luminance 0.1451

Tints & shades

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

Harmonies

Complementary

Open in tool →

#45b5b5

#b5457d · #b57d45

#45b545 · #4545b5

Split-complementary

Open in tool →

#45b57d · #457db5

#7db545 · #45b5b5 · #7d45b5

Contrast

#b54545 as textRatioAAAA largeAAAFix
Aaon white
5.38:1passpassfail
  • AAA: use #943838 as the text (7.29:1)
Aaon black
3.9:1failpassfail
  • AA: use #be5555 as the text (4.62:1)
  • AAA: use #cf8181 as the text (7.11:1)
  • AA: or shift the background to #ebebeb (4.51:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b54545 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

#b54545 reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b54545
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 #b54545 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b54545-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