Color

#ff3d54

#ff3d54
hex#ff3d54
rgbrgb(255, 61, 84)
hslhsl(353, 100%, 62%)
oklchoklch(0.66 0.227 20.2)
Closest name: Blood Burst (#ff474c)Relative luminance 0.2524

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3dffe8

#ff3db5 · #ff873d

#54ff3d · #3d54ff

Split-complementary

Open in tool →

#3dff87 · #3db5ff

#b5ff3d · #3dffe8 · #873dff

Contrast

#ff3d54 as textRatioAAAA largeAAAFix
Aaon white
3.47:1failpassfail
  • AA: use #eb001b as the text (4.62:1)
  • AAA: use #b30015 as the text (7.17:1)
  • AA: or shift the background to #212121 (4.64:1)
Aaon black
6.05:1passpassfail
  • AAA: use #ff5c6f 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 #ff3d54 as the background.

Brands using this color

Fonts for this mood

#ff3d54 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ff3d54
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 #ff3d54 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ff3d54-c49c9c-62cb8c-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