Color

#0cb309

#0cb309
hex#0cb309
rgbrgb(12, 179, 9)
hslhsl(119, 90%, 37%)
oklchoklch(0.665 0.223 142.5)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.3234

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b009b3

#61b309 · #09b35c

#090cb3 · #b3090c

Split-complementary

Open in tool →

#5c09b3 · #b30961

#0961b3 · #b009b3 · #b35c09

Contrast

#0cb309 as textRatioAAAA largeAAAFix
Aaon white
2.81:1failfailfail
  • AA: use #098807 as the text (4.63:1)
  • AAA: use #076605 as the text (7.21:1)
  • AA: or shift the background to #303030 (4.69:1)
  • AAA: or shift the background to #0a0a0a (7.04:1)
Aaon black
7.47:1passpasspassPasses 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 #0cb309 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 #0cb309
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 #0cb309 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0cb309-a2bea5-964edf-1f2d25-edf1e9?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