Color

#fb3328

#fb3328
hex#fb3328
rgbrgb(251, 51, 40)
hslhsl(3, 96%, 57%)
oklchoklch(0.641 0.235 28.9)
Closest name: Apple Cherry (#f81404)Relative luminance 0.2303

Tints & shades

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

Harmonies

Complementary

Open in tool →

#28f0fb

#fb2887 · #fb9c28

#28fb33 · #3328fb

Split-complementary

Open in tool →

#28fb9c · #2887fb

#87fb28 · #28f0fb · #9c28fb

Contrast

#fb3328 as textRatioAAAA largeAAAFix
Aaon white
3.75:1failpassfail
  • AA: use #eb1005 as the text (4.56:1)
  • AAA: use #b40c04 as the text (7.01:1)
  • AA: or shift the background to #1c1c1c (4.55:1)
Aaon black
5.61:1passpassfail
  • AAA: use #fc625a as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #fb3328 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#fb3328 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fb3328
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 #fb3328 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fb3328-c4a39c-62cb9d-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