Color

#ecd504

#ecd504
hex#ecd504
rgbrgb(236, 213, 4)
hslhsl(54, 97%, 47%)
oklchoklch(0.865 0.18 101.5)
Closest name: Banana Brick (#e8d82c)Relative luminance 0.6543

Tints & shades

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

Harmonies

Complementary

Open in tool →

#041bec

#ec6104 · #8fec04

#04ecd5 · #d504ec

Split-complementary

Open in tool →

#048fec · #6104ec

#04ec61 · #041bec · #ec048f

Contrast

#ecd504 as textRatioAAAA largeAAAFix
Aaon white
1.49:1failfailfail
  • AA: use #837602 as the text (4.61:1)
  • AAA: use #5f5601 as the text (7.45:1)
  • AA: or shift the background to #595959 (4.7:1)
  • AAA: or shift the background to #3d3d3d (7.29:1)
Aaon black
14.09:1passpasspassPasses 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 #ecd504 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

#ecd504 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #ecd504
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 #ecd504 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/ecd504-bebea2-4ea2df-292d1f-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