Color

#01e40d

#01e40d
hex#01e40d
rgbrgb(1, 228, 13)
hslhsl(123, 99%, 45%)
oklchoklch(0.796 0.269 142.7)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5552

Colors that go with #01e40d

Taupe, Violet and Hot Pink lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#e401d9

#67e401 · #01e47e

#0d01e4 · #e40d01

Split-complementary

Open in tool →

#7e01e4 · #e40167

#0167e4 · #e401d9 · #e47e01

Contrast

#01e40d as textRatioAAAA largeAAAFix
Aaon white
1.73:1failfailfail
  • AA: use #018908 as the text (4.58:1)
  • AAA: use #016506 as the text (7.33:1)
  • AA: or shift the background to #525252 (4.5:1)
  • AAA: or shift the background to #333333 (7.28:1)
Aaon black
12.1:1passpasspassPasses 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 #01e40d 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 #01e40d
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #01e40d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01e40d-a2bea6-a04edf-1f2d26-edf1e9?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