Color

#fd3033

#fd3033
hex#fd3033
rgbrgb(253, 48, 51)
hslhsl(359, 98%, 59%)
oklchoklch(0.643 0.237 26.6)
Closest name: red (#ff0000)Relative luminance 0.2324

Tints & shades

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

Harmonies

Complementary

Open in tool →

#30fdf9

#fd309a · #fd9330

#33fd30 · #3033fd

Split-complementary

Open in tool →

#30fd93 · #309afd

#9afd30 · #30fdf9 · #9330fd

Contrast

#fd3033 as textRatioAAAA largeAAAFix
Aaon white
3.72:1failpassfail
  • AA: use #ed0206 as the text (4.55:1)
  • AAA: use #b60205 as the text (7:1)
  • AA: or shift the background to #1c1c1c (4.58:1)
Aaon black
5.65:1passpassfail
  • AAA: use #fd6265 as the text (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fd3033 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fd3033 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fd3033
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 #fd3033 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fd3033-c4a09c-62cb96-2d251f-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