Color

#fdf563

#fdf563
hex#fdf563
rgbrgb(253, 245, 99)
hslhsl(57, 97%, 69%)
oklchoklch(0.95 0.164 106.2)
Closest name: Buttercup Glow (#f1f458)Relative luminance 0.8709

Tints & shades

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

Harmonies

Complementary

Open in tool →

#636bfd

#fda863 · #b8fd63

#63fdf5 · #f563fd

Split-complementary

Open in tool →

#63b8fd · #a863fd

#63fda8 · #636bfd · #fd63b8

Contrast

#fdf563 as textRatioAAAA largeAAAFix
Aaon white
1.14:1failfailfail
  • AA: use #7e7702 as the text (4.64:1)
  • AAA: use #5f5b01 as the text (7.04:1)
  • AA: or shift the background to #6b6b6b (4.67:1)
  • AAA: or shift the background to #4f4f4f (7.18:1)
Aaon black
18.42:1passpasspassPasses 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 #fdf563 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#fdf563 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fdf563
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 #fdf563 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fdf563-bcbea2-4e9bdf-282d1f-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