Color

#aa1830

#aa1830
hex#aa1830
rgbrgb(170, 24, 48)
hslhsl(350, 75%, 38%)
oklchoklch(0.477 0.177 19.9)
Closest name: Blood Rush (#aa2222)Relative luminance 0.0941

Tints & shades

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

Harmonies

Complementary

Open in tool →

#18aa91

#aa1879 · #aa4918

#30aa18 · #1830aa

Split-complementary

Open in tool →

#18aa49 · #1879aa

#79aa18 · #18aa91 · #4918aa

Contrast

#aa1830 as textRatioAAAA largeAAAFix
Aaon white
7.29:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #e02444 as the text (4.51:1)
  • AAA: use #eb7085 as the text (7.19:1)
  • AA: or shift the background to #cccccc (4.54:1)
  • AAA: or shift the background to #fcfcfc (7.1:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #aa1830 as the background.

Brands using this color

Fonts for this mood

#aa1830 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aa1830
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 #aa1830 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aa1830-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