Color

#b3003e

#b3003e
hex#b3003e
rgbrgb(179, 0, 62)
hslhsl(339, 100%, 35%)
oklchoklch(0.488 0.195 13.5)
Closest name: Fancy Red Wine (#b40441)Relative luminance 0.0993

Colors that go with #b3003e

Royal Blue, Teal and Denim 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 →

#00b374

#b30098 · #b31b00

#3eb300 · #003eb3

Split-complementary

Open in tool →

#00b31b · #0098b3

#98b300 · #00b374 · #1b00b3

Contrast

#b3003e as textRatioAAAA largeAAAFix
Aaon white
7.03:1passpasspassPasses AAA — no fix needed.
Aaon black
2.99:1failfailfail
  • AA: use #eb0052 as the text (4.65:1)
  • AAA: use #ff5792 as the text (7.03:1)
  • AA: or shift the background to #cfcfcf (4.51:1)
  • AAA: or shift the background to #ffffff (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b3003e 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

#b3003e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b3003e
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 #b3003e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b3003e-c49ca5-62cb74-2d211f-f1e9f0?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