Color

#f41528

#f41528
hex#f41528
rgbrgb(244, 21, 40)
hslhsl(355, 91%, 52%)
oklchoklch(0.614 0.243 26)
Closest name: Assassin’s Red (#f60206)Relative luminance 0.1992

Tints & shades

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

Harmonies

Complementary

Open in tool →

#15f4e1

#f41597 · #f47215

#28f415 · #1528f4

Split-complementary

Open in tool →

#15f472 · #1597f4

#97f415 · #15f4e1 · #7215f4

Contrast

#f41528 as textRatioAAAA largeAAAFix
Aaon white
4.21:1failpassfail
  • AA: use #ea0b1e as the text (4.6:1)
  • AAA: use #b40817 as the text (7.03:1)
  • AA: or shift the background to #0f0f0f (4.55:1)
Aaon black
4.98:1passpassfail
  • AAA: use #f86370 as the text (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 #f41528 as the background.

Brands using this color

Fonts for this mood

#f41528 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #f41528
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 #f41528 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/f41528-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