Color

#fdf858

#fdf858
hex#fdf858
rgbrgb(253, 248, 88)
hslhsl(58, 98%, 67%)
oklchoklch(0.955 0.175 107.5)
Closest name: Biohazard Suit (#fbfb4c)Relative luminance 0.8872

Colors that go with #fdf858

Lilac, Blue and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#585efd

#fda558 · #b0fd58

#58fdf8 · #f858fd

Split-complementary

Open in tool →

#58b0fd · #a558fd

#58fda5 · #585efd · #fd58b0

Contrast

#fdf858 as textRatioAAAA largeAAAFix
Aaon white
1.12:1failfailfail
  • AA: use #797501 as the text (4.82:1)
  • AAA: use #5b5801 as the text (7.39:1)
  • AA: or shift the background to #6e6e6e (4.55:1)
  • AAA: or shift the background to #4f4f4f (7.31:1)
Aaon black
18.74:1passpasspassPasses 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 #fdf858 as the background.

Brands using this color

Fonts for this mood

#fdf858 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #fdf858
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #fdf858 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/fdf858-bcbea2-4e99df-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