Color

#b43013

#b43013
hex#b43013
rgbrgb(180, 48, 19)
hslhsl(11, 81%, 39%)
oklchoklch(0.511 0.173 33.5)
Closest name: Bloodshed (#ba271a)Relative luminance 0.1186

Colors that go with #b43013

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.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1396b4

#b41346 · #b48113

#13b430 · #3013b4

Split-complementary

Open in tool →

#13b481 · #1346b4

#46b413 · #1396b4 · #8113b4

Contrast

#b43013 as textRatioAAAA largeAAAFix
Aaon white
6.23:1passpassfail
  • AAA: use #a22b11 as the text (7.27:1)
Aaon black
3.37:1failpassfail
  • AA: use #d93a17 as the text (4.57:1)
  • AAA: use #ed7054 as the text (7.05:1)
  • AA: or shift the background to #dedede (4.63:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b43013 as the background.

Brands using this color

Fonts for this mood

#b43013 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b43013
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 #b43013 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b43013-c4a89c-62cbab-2d281f-f1e9ec?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