Color

#a3003f

#a3003f
hex#a3003f
rgbrgb(163, 0, 63)
hslhsl(337, 100%, 32%)
oklchoklch(0.457 0.183 10.2)
Closest name: Cranberry (#9e003a)Relative luminance 0.0815

Tints & shades

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

Harmonies

Complementary

Open in tool →

#00a365

#a30090 · #a31300

#3fa300 · #003fa3

Split-complementary

Open in tool →

#00a313 · #0090a3

#90a300 · #00a365 · #1300a3

Contrast

#a3003f as textRatioAAAA largeAAAFix
Aaon white
7.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #e60058 as the text (4.51:1)
  • AAA: use #ff5797 as the text (7.06:1)
  • AA: or shift the background to #c4c4c4 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #a3003f as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

Fonts for this mood

#a3003f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #a3003f
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 #a3003f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/a3003f-c49ca7-62cb70-2d201f-f1e9f0?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