brandsweets

Color

#fbfb41

#fbfb41
hex#fbfb41
rgbrgb(251, 251, 65)
hslhsl(60, 96%, 62%)
oklchoklch(0.958 0.192 109.5)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.8989
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
fbfb414141fb

#4141fb

Analogous

Open in tool →
fbfb41fb9e419efb41

#fb9e41 · #9efb41

Triadic

Open in tool →
fbfb4141fbfbfb41fb

#41fbfb · #fb41fb

Split-complementary

Open in tool →
fbfb41419efb9e41fb

#419efb · #9e41fb

Tetradic

Open in tool →
fbfb4141fb9e4141fbfb419e

#41fb9e · #4141fb · #fb419e

Contrast

#fbfb41 as textRatioAAAA largeAAAFix
Aaon white
1.11:1failfailfail
  • 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 (7.06:1)
Aaon black
18.98:1passpasspassPasses 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 #fbfb41 as the background.

Brands using this color

mcpConnect your agent — build around #fbfb41
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 #fbfb41 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fbfb41-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