Color

#3cf028

#3cf028
hex#3cf028
rgbrgb(60, 240, 40)
hslhsl(114, 87%, 55%)
oklchoklch(0.834 0.266 141.8)
Closest name: Becquerel (#4bec13)Relative luminance 0.6343

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dc28f0

#a0f028 · #28f078

#283cf0 · #f0283c

Split-complementary

Open in tool →

#7828f0 · #f028a0

#28a0f0 · #dc28f0 · #f07828

Contrast

#3cf028 as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #168609 as the text (4.72:1)
  • AAA: use #106407 as the text (7.37:1)
  • AA: or shift the background to #595959 (4.57:1)
  • AAA: or shift the background to #3d3d3d (7.08:1)
Aaon black
13.69:1passpasspassPasses 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 #3cf028 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 #3cf028
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 #3cf028 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3cf028-a2bea2-8a4edf-1f2d24-eef1e9?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