Color

#a3000e

#a3000e
hex#a3000e
rgbrgb(163, 0, 14)
hslhsl(355, 100%, 32%)
oklchoklch(0.45 0.183 27.1)
Closest name: Bleeding Crimson (#9b1414)Relative luminance 0.0782

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00a396

#a3005f · #a34400

#0ea300 · #000ea3

Split-complementary

Open in tool →

#00a344 · #005fa3

#5fa300 · #00a396 · #4400a3

Contrast

#a3000e as textRatioAAAA largeAAAFix
Aaon white
8.19:1passpasspassPasses AAA — no fix needed.
Aaon black
2.56:1failfailfail
  • AA: use #eb0014 as the text (4.54:1)
  • AAA: use #ff616e as the text (7.19:1)
  • AA: or shift the background to #c2c2c2 (4.6:1)
  • AAA: or shift the background to #f0f0f0 (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a3000e 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

#a3000e reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3000e
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 #a3000e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3000e-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