Color

#eca604

#eca604
hex#eca604
rgbrgb(236, 166, 4)
hslhsl(42, 97%, 47%)
oklchoklch(0.773 0.16 78.2)
Closest name: goldenrod (#daa520)Relative luminance 0.4511

Tints & shades

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

Harmonies

Complementary

Open in tool →

#0449ec

#ec3204 · #beec04

#04eca6 · #a604ec

Split-complementary

Open in tool →

#04beec · #3204ec

#04ec32 · #0449ec · #ec04be

Contrast

#eca604 as textRatioAAAA largeAAAFix
Aaon white
2.1:1failfailfail
  • AA: use #9c6e02 as the text (4.52:1)
  • AAA: use #745102 as the text (7.19:1)
  • AA: or shift the background to #454545 (4.58:1)
  • AAA: or shift the background to #262626 (7.22:1)
Aaon black
10.02:1passpasspassPasses 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 #eca604 as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#eca604 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #eca604
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 #eca604 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/eca604-c4bc9c-62b4cb-2b2d1f-f1ebe9?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