Color

#fa3a33

#fa3a33
hex#fa3a33
rgbrgb(250, 58, 51)
hslhsl(2, 95%, 59%)
oklchoklch(0.645 0.228 27.9)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2359

Tints & shades

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

Harmonies

Complementary

Open in tool →

#33f3fa

#fa3390 · #fa9d33

#33fa3a · #3a33fa

Split-complementary

Open in tool →

#33fa9d · #3390fa

#90fa33 · #33f3fa · #9d33fa

Contrast

#fa3a33 as textRatioAAAA largeAAAFix
Aaon white
3.67:1failpassfail
  • AA: use #ea0e06 as the text (4.6:1)
  • AAA: use #b30a05 as the text (7.09:1)
  • AA: or shift the background to #1c1c1c (4.64:1)
Aaon black
5.72:1passpassfail
  • AAA: use #fb6560 as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fa3a33 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fa3a33 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fa3a33
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 #fa3a33 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fa3a33-c4a29c-62cb9c-2d261f-f1e9ed?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