brandsweets

Color

#fdfd3f

#fdfd3f
hex#fdfd3f
rgbrgb(253, 253, 63)
hslhsl(60, 98%, 62%)
oklchoklch(0.964 0.194 109.5)
Closest name: Big Yellow Taxi (#ffff33)Relative luminance 0.9149
Vivid
Open in palette toolCheck contrast

Tints & shades

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

Harmonies

Complementary

Open in tool →
fdfd3f3f3ffd

#3f3ffd

Analogous

Open in tool →
fdfd3ffd9e3f9efd3f

#fd9e3f · #9efd3f

Triadic

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fdfd3f3ffdfdfd3ffd

#3ffdfd · #fd3ffd

Split-complementary

Open in tool →
fdfd3f3f9efd9e3ffd

#3f9efd · #9e3ffd

Tetradic

Open in tool →
fdfd3f3ffd9e3f3ffdfd3f9e

#3ffd9e · #3f3ffd · #fd3f9e

Contrast

#fdfd3f as textRatioAAAA largeAAAFix
Aaon white
1.09:1failfailfail
  • AA: use #797901 as the text (4.62:1)
  • AAA: use #5b5b01 as the text (7.14:1)
  • AA: or shift the background to #707070 (4.55:1)
  • AAA: or shift the background to #525252 (7.18:1)
Aaon black
19.3:1passpasspassPasses 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 #fdfd3f as the background.

Brands using this color

mcpConnect your agent — build around #fdfd3f
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 #fdfd3f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fdfd3f-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