Color

#72e421

#72e421
hex#72e421
rgbrgb(114, 228, 33)
hslhsl(95, 78%, 51%)
oklchoklch(0.819 0.237 136.5)
Closest name: Becquerel (#4bec13)Relative luminance 0.5917

Tints & shades

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

Harmonies

Complementary

Open in tool →

#9221e4

#d3e421 · #21e431

#2172e4 · #e42172

Split-complementary

Open in tool →

#3121e4 · #e421d3

#21d3e4 · #9221e4 · #e43121

Contrast

#72e421 as textRatioAAAA largeAAAFix
Aaon white
1.64:1failfailfail
  • AA: use #408410 as the text (4.64:1)
  • AAA: use #31640c as the text (7.1:1)
  • AA: or shift the background to #545454 (4.63:1)
  • AAA: or shift the background to #383838 (7.17:1)
Aaon black
12.83:1passpasspassPasses 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 #72e421 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 #72e421
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 #72e421 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/72e421-aabea2-5d4edf-1f2d20-f0f1e9?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