Color

#b20628

#b20628
hex#b20628
rgbrgb(178, 6, 40)
hslhsl(348, 93%, 36%)
oklchoklch(0.484 0.192 21.8)
Closest name: Akai Red (#bc012e)Relative luminance 0.0975

Colors that go with #b20628

Royal Blue, Teal and Amber 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 →

#06b18f

#b1067e · #b13a06

#29b106 · #0629b1

Split-complementary

Open in tool →

#06b13a · #067eb1

#7eb106 · #06b18f · #3a06b1

Contrast

#b20628 as textRatioAAAA largeAAAFix
Aaon white
7.12:1passpasspassPasses AAA — no fix needed.
Aaon black
2.95:1failfailfail
  • AA: use #ec0936 as the text (4.66:1)
  • AAA: use #f96280 as the text (7.09:1)
  • AA: or shift the background to #cfcfcf (4.57:1)
  • AAA: or shift the background to #ffffff (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #b20628 as the background.

Brands using this color

Fonts for this mood

#b20628 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #b20628
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 #b20628 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/b20628-c49c9f-62cb83-2d231f-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