Color

#9cd803

#9cd803
hex#9cd803
rgbrgb(156, 216, 3)
hslhsl(77, 97%, 43%)
oklchoklch(0.811 0.209 127.2)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5619

Tints & shades

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

Harmonies

Complementary

Open in tool →

#4003d8

#d8aa03 · #31d803

#039cd8 · #d8039c

Split-complementary

Open in tool →

#0331d8 · #aa03d8

#03d8aa · #4003d8 · #d80331

Contrast

#9cd803 as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #5b7e02 as the text (4.74:1)
  • AAA: use #455f01 as the text (7.27:1)
  • AA: or shift the background to #525252 (4.55:1)
  • AAA: or shift the background to #363636 (7.04:1)
Aaon black
12.24:1passpasspassPasses 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 #9cd803 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 #9cd803
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 #9cd803 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/9cd803-b3bea2-4e6bdf-232d1f-f1efe9?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