Color

#1fa340

#1fa340
hex#1fa340
rgbrgb(31, 163, 64)
hslhsl(135, 68%, 38%)
oklchoklch(0.627 0.177 146.7)
Closest name: Fennel Fiasco (#00aa44)Relative luminance 0.2686

Colors that go with #1fa340

Charcoal, Blue and Crimson 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 →

#a31f82

#40a31f · #1fa382

#401fa3 · #a3401f

Split-complementary

Open in tool →

#821fa3 · #a31f40

#1f40a3 · #a31f82 · #a3821f

Contrast

#1fa340 as textRatioAAAA largeAAAFix
Aaon white
3.3:1failpassfail
  • AA: use #198534 as the text (4.72:1)
  • AAA: use #136327 as the text (7.39:1)
  • AA: or shift the background to #262626 (4.59:1)
Aaon black
6.37:1passpassfail
  • AAA: use #21b045 as the text (7.36:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1fa340 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #1fa340
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 #1fa340 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fa340-a2beac-b759d4-1f2d29-ebf1e9?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