Color

#01f42e

#01f42e
hex#01f42e
rgbrgb(1, 244, 46)
hslhsl(131, 99%, 48%)
oklchoklch(0.839 0.275 143.6)
Closest name: Becquerel (#4bec13)Relative luminance 0.6491

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f401c7

#4ef401 · #01f4a7

#2e01f4 · #f42e01

Split-complementary

Open in tool →

#a701f4 · #f4014e

#014ef4 · #f401c7 · #f4a701

Contrast

#01f42e as textRatioAAAA largeAAAFix
Aaon white
1.5:1failfailfail
  • AA: use #01891a as the text (4.57:1)
  • AAA: use #016513 as the text (7.31:1)
  • AA: or shift the background to #595959 (4.66:1)
  • AAA: or shift the background to #3d3d3d (7.23:1)
Aaon black
13.98:1passpasspassPasses 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 #01f42e 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 #01f42e
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 #01f42e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01f42e-a2beaa-b34edf-1f2d28-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