Color

#cfd728

#cfd728
hex#cfd728
rgbrgb(207, 215, 40)
hslhsl(63, 69%, 50%)
oklchoklch(0.845 0.179 112.5)
Closest name: Bitter Lemon (#d2db32)Relative luminance 0.6202

Colors that go with #cfd728

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.

Real palettes that use #cfd728

Tints & shades

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

Harmonies

Complementary

Open in tool →

#3028d7

#d78828 · #77d728

#28cfd7 · #d728cf

Split-complementary

Open in tool →

#2877d7 · #8828d7

#28d788 · #3028d7 · #d72877

Contrast

#cfd728 as textRatioAAAA largeAAAFix
Aaon white
1.57:1failfailfail
  • AA: use #747916 as the text (4.68:1)
  • AAA: use #575a11 as the text (7.3:1)
  • AA: or shift the background to #575757 (4.61:1)
  • AAA: or shift the background to #3b3b3b (7.15:1)
Aaon black
13.4:1passpasspassPasses 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 #cfd728 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

mcpConnect your agent — build around #cfd728
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 #cfd728 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/cfd728-b9bea2-4e8ddf-262d1f-f1eee9?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