Color

#fbfe52

#fbfe52
hex#fbfe52
rgbrgb(251, 254, 82)
hslhsl(61, 99%, 66%)
oklchoklch(0.965 0.185 110.4)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.92

Tints & shades

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

Harmonies

Complementary

Open in tool →

#5552fe

#feab52 · #a5fe52

#52fbfe · #fe52fb

Split-complementary

Open in tool →

#52a5fe · #ab52fe

#52feab · #5552fe · #fe52a5

Contrast

#fbfe52 as textRatioAAAA largeAAAFix
Aaon white
1.08:1failfailfail
  • AA: use #787a01 as the text (4.58:1)
  • AAA: use #5a5b00 as the text (7.16:1)
  • AA: or shift the background to #707070 (4.57:1)
  • AAA: or shift the background to #525252 (7.22:1)
Aaon black
19.4:1passpasspassPasses 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 #fbfe52 as the background.

Brands using this color

mcpConnect your agent — build around #fbfe52
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 #fbfe52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fbfe52-babea2-4e92df-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