Color

#13d90d

#13d90d
hex#13d90d
rgbrgb(19, 217, 13)
hslhsl(118, 89%, 45%)
oklchoklch(0.768 0.258 142.4)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.4979

Colors that go with #13d90d

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 →

#d20dd9

#7ad90d · #0dd96c

#0d13d9 · #d90d13

Split-complementary

Open in tool →

#6c0dd9 · #d90d7a

#0d7ad9 · #d20dd9 · #d96c0d

Contrast

#13d90d as textRatioAAAA largeAAAFix
Aaon white
1.92:1failfailfail
  • AA: use #0c8708 as the text (4.68:1)
  • AAA: use #096506 as the text (7.3:1)
  • AA: or shift the background to #4a4a4a (4.62:1)
  • AAA: or shift the background to #2e2e2e (7.09:1)
Aaon black
10.96:1passpasspassPasses 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 #13d90d 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 #13d90d
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 #13d90d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/13d90d-a2bea4-944edf-1f2d25-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