Color

#b01730

#b01730
hex#b01730
rgbrgb(176, 23, 48)
hslhsl(350, 77%, 39%)
oklchoklch(0.488 0.183 20.4)
Closest name: Active Volcano (#bb1133)Relative luminance 0.1006

Colors that go with #b01730

Royal Blue, Teal and Dark Olive Green 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 →

#17b097

#b0177d · #b04a17

#30b017 · #1730b0

Split-complementary

Open in tool →

#17b04a · #177db0

#7db017 · #17b097 · #4a17b0

Contrast

#b01730 as textRatioAAAA largeAAAFix
Aaon white
6.97:1passpassfail
  • AAA: use #ac162f as the text (7.22:1)
Aaon black
3.01:1failpassfail
  • AA: use #e22242 as the text (4.54:1)
  • AAA: use #ec6f84 as the text (7.17:1)
  • AA: or shift the background to #d1d1d1 (4.57:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b01730 as the background.

Brands using this color

Fonts for this mood

#b01730 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b01730
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 #b01730 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b01730-c49c9e-62cb87-2d231f-f1e9ee?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