brandsweets

Color

Biohazard Suit

#fbfb4c
hex#fbfb4c
rgbrgb(251, 251, 76)
hslhsl(60, 96%, 64%)
oklchoklch(0.959 0.186 109.4)
Relative luminance 0.9003
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
fbfb4c4b4bfb

#4b4bfb

Analogous

Open in tool →
fbfb4cfba34ba3fb4b

#fba34b · #a3fb4b

Triadic

Open in tool →
fbfb4c4bfbfbfb4bfb

#4bfbfb · #fb4bfb

Split-complementary

Open in tool →
fbfb4c4ba3fba34bfb

#4ba3fb · #a34bfb

Tetradic

Open in tool →
fbfb4c4bfba34b4bfbfb4ba3

#4bfba3 · #4b4bfb · #fb4ba3

Contrast

Biohazard Suit as textRatioAAAA largeAAAFix
Aaon white
1.1:1failfailfail
  • AA: use #787802 as the text (4.68:1)
  • AAA: use #5a5a02 as the text (7.25:1)
  • AA: or shift the background to #6e6e6e (4.61:1)
  • AAA: or shift the background to #525252 (7.07:1)
Aaon black
19.01:1passpasspassPasses AAA — no fix needed.

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

Brands using this color

mcpConnect your agent — build around Biohazard Suit
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 #fbfb4c and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fbfb4c-bbbea2-4e94df-272d1f-f1ede9?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