Color

#e4c321

#e4c321
hex#e4c321
rgbrgb(228, 195, 33)
hslhsl(50, 78%, 51%)
oklchoklch(0.822 0.163 96.1)
Closest name: Aurora (#ebd147)Relative luminance 0.5563

Colors that go with #e4c321

Charcoal, Cornflower Blue and Deep Sky Blue 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 →

#2141e4

#e46221 · #a3e421

#21e4c3 · #c321e4

Split-complementary

Open in tool →

#21a3e4 · #6221e4

#21e462 · #2141e4 · #e421a3

Contrast

#e4c321 as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #887411 as the text (4.61:1)
  • AAA: use #64550c as the text (7.38:1)
  • AA: or shift the background to #525252 (4.51:1)
  • AAA: or shift the background to #333333 (7.3:1)
Aaon black
12.13:1passpasspassPasses 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 #e4c321 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

#e4c321 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #e4c321
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 #e4c321 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/e4c321-c4c29c-4eacdf-292d1f-f1ece9?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