Color

#40f028

#40f028
hex#40f028
rgbrgb(64, 240, 40)
hslhsl(113, 87%, 55%)
oklchoklch(0.835 0.265 141.6)
Closest name: Becquerel (#4bec13)Relative luminance 0.6356

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d928f0

#a4f028 · #28f075

#2840f0 · #f02840

Split-complementary

Open in tool →

#7528f0 · #f028a4

#28a4f0 · #d928f0 · #f07528

Contrast

#40f028 as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #188609 as the text (4.72:1)
  • AAA: use #126407 as the text (7.36:1)
  • AA: or shift the background to #595959 (4.57:1)
  • AAA: or shift the background to #3d3d3d (7.09:1)
Aaon black
13.71:1passpasspassPasses 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 #40f028 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 #40f028
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 #40f028 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/40f028-a2bea2-884edf-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