Color

#b8143a

#b8143a
hex#b8143a
rgbrgb(184, 20, 58)
hslhsl(346, 80%, 40%)
oklchoklch(0.503 0.192 17.1)
Closest name: Active Volcano (#bb1133)Relative luminance 0.11

Colors that go with #b8143a

Royal Blue, Steel Blue and Teal 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 →

#14b892

#b8148c · #b84014

#3ab814 · #143ab8

Split-complementary

Open in tool →

#14b840 · #148cb8

#8cb814 · #14b892 · #4014b8

Contrast

#b8143a as textRatioAAAA largeAAAFix
Aaon white
6.56:1passpassfail
  • AAA: use #ae1338 as the text (7.12:1)
Aaon black
3.2:1failpassfail
  • AA: use #e61949 as the text (4.6:1)
  • AAA: use #ef6c8b as the text (7.19:1)
  • AA: or shift the background to #d6d6d6 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b8143a as the background.

Brands using this color

Fonts for this mood

#b8143a reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b8143a
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 #b8143a and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b8143a-c49ca1-62cb80-2d221f-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