Color

#aa030f

#aa030f
hex#aa030f
rgbrgb(170, 3, 15)
hslhsl(356, 97%, 34%)
oklchoklch(0.465 0.188 27.3)
Closest name: All Systems Red (#b30103)Relative luminance 0.0865

Tints & shades

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

Harmonies

Complementary

Open in tool →

#03aba0

#ab0362 · #ab4b03

#0eab03 · #030eab

Split-complementary

Open in tool →

#03ab4b · #0362ab

#62ab03 · #03aba0 · #4b03ab

Contrast

#aa030f as textRatioAAAA largeAAAFix
Aaon white
7.69:1passpasspassPasses AAA — no fix needed.
Aaon black
2.73:1failfailfail
  • AA: use #ec0413 as the text (4.59:1)
  • AAA: use #fd636d as the text (7.18:1)
  • AA: or shift the background to #c7c7c7 (4.55:1)
  • AAA: or shift the background to #f5f5f5 (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #aa030f 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

#aa030f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #aa030f
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 #aa030f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/aa030f-c49e9c-62cb91-2d241f-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