Color

#a91204

#a91204
hex#a91204
rgbrgb(169, 18, 4)
hslhsl(5, 95%, 34%)
oklchoklch(0.468 0.183 30.2)
Closest name: All Systems Red (#b30103)Relative luminance 0.0888

Tints & shades

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

Harmonies

Complementary

Open in tool →

#049ba9

#a90449 · #a96404

#04a912 · #1204a9

Split-complementary

Open in tool →

#04a964 · #0449a9

#49a904 · #049ba9 · #6404a9

Contrast

#a91204 as textRatioAAAA largeAAAFix
Aaon white
7.57:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #ea1906 as the text (4.64:1)
  • AAA: use #fb6456 as the text (7.06:1)
  • AA: or shift the background to #c9c9c9 (4.57:1)
  • AAA: or shift the background to #f7f7f7 (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 #a91204 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

#a91204 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a91204
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 #a91204 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a91204-c4a49c-62cba1-2d261f-f1e9ec?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