Color

#aa1824

#aa1824
hex#aa1824
rgbrgb(170, 24, 36)
hslhsl(355, 75%, 38%)
oklchoklch(0.475 0.178 24.2)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0933

Tints & shades

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

Harmonies

Complementary

Open in tool →

#18aa9d

#aa186d · #aa5518

#24aa18 · #1824aa

Split-complementary

Open in tool →

#18aa55 · #186daa

#6daa18 · #18aa9d · #5518aa

Contrast

#aa1824 as textRatioAAAA largeAAAFix
Aaon white
7.33:1passpasspassPasses AAA — no fix needed.
Aaon black
2.87:1failfailfail
  • AA: use #e02938 as the text (4.54:1)
  • AAA: use #eb707a as the text (7.13:1)
  • AA: or shift the background to #cccccc (4.56:1)
  • AAA: or shift the background to #fafafa (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #aa1824 as the background.

Brands using this color

Fonts for this mood

#aa1824 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aa1824
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #aa1824 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aa1824-c49e9c-62cb8f-2d241f-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