Color

#efaa1f

#efaa1f
hex#efaa1f
rgbrgb(239, 170, 31)
hslhsl(40, 87%, 53%)
oklchoklch(0.784 0.157 78)
Closest name: Artisans Gold (#f2ab46)Relative luminance 0.472

Tints & shades

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

Harmonies

Complementary

Open in tool →

#1f64ef

#ef421f · #cdef1f

#1fefaa · #aa1fef

Split-complementary

Open in tool →

#1fcdef · #421fef

#1fef42 · #1f64ef · #ef1fcd

Contrast

#efaa1f as textRatioAAAA largeAAAFix
Aaon white
2.01:1failfailfail
  • AA: use #9d6d0b as the text (4.54:1)
  • AAA: use #775208 as the text (7.01:1)
  • AA: or shift the background to #474747 (4.62:1)
  • AAA: or shift the background to #2b2b2b (7.04:1)
Aaon black
10.44:1passpasspassPasses 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 #efaa1f as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#efaa1f reads as warm, vivid, playful. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #efaa1f
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 #efaa1f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/efaa1f-c4bb9c-62b8cb-2c2d1f-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