Color

#bb3e3a

#bb3e3a
hex#bb3e3a
rgbrgb(187, 62, 58)
hslhsl(2, 53%, 48%)
oklchoklch(0.542 0.162 25.9)
Closest name: Bento Box (#cc363c)Relative luminance 0.1432

Colors that go with #bb3e3a

Royal Blue, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Real palettes that use #bb3e3a

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3ab7bb

#bb3a76 · #bb7f3a

#3abb3e · #3e3abb

Split-complementary

Open in tool →

#3abb7f · #3a76bb

#76bb3a · #3ab7bb · #7f3abb

Contrast

#bb3e3a as textRatioAAAA largeAAAFix
Aaon white
5.44:1passpassfail
  • AAA: use #9c3430 as the text (7.12:1)
Aaon black
3.86:1failpassfail
  • AA: use #c74c48 as the text (4.56:1)
  • AAA: use #d67d7a as the text (7.07:1)
  • AA: or shift the background to #ebebeb (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #bb3e3a 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

#bb3e3a reads as warm. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #bb3e3a
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #bb3e3a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/bb3e3a-c4a29c-62cb9c-2d261f-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