Color

#04b91f

#04b91f
hex#04b91f
rgbrgb(4, 185, 31)
hslhsl(129, 96%, 37%)
oklchoklch(0.682 0.224 143.5)
Closest name: Green Glimmer (#00bb00)Relative luminance 0.3482

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b9049e

#43b904 · #04b97a

#1f04b9 · #b91f04

Split-complementary

Open in tool →

#7a04b9 · #b90443

#0443b9 · #b9049e · #b97a04

Contrast

#04b91f as textRatioAAAA largeAAAFix
Aaon white
2.64:1failfailfail
  • AA: use #038717 as the text (4.69:1)
  • AAA: use #026411 as the text (7.41:1)
  • AA: or shift the background to #363636 (4.58:1)
  • AAA: or shift the background to #121212 (7.1:1)
Aaon black
7.96:1passpasspassPasses 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 #04b91f 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 #04b91f
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 #04b91f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04b91f-a2bea9-ae4edf-1f2d27-ecf1e9?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