Color

#1fa31f

#1fa31f
hex#1fa31f
rgbrgb(31, 163, 31)
hslhsl(120, 68%, 38%)
oklchoklch(0.624 0.198 142.7)
Closest name: Hedged Garden (#00aa11)Relative luminance 0.2658

Colors that go with #1fa31f

Blue, Dodger Blue and Royal Blue 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 →

#a31fa3

#61a31f · #1fa361

#1f1fa3 · #a31f1f

Split-complementary

Open in tool →

#611fa3 · #a31f61

#1f61a3 · #a31fa3 · #a3611f

Contrast

#1fa31f as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #1a891a as the text (4.53:1)
  • AAA: use #146714 as the text (7.05:1)
  • AA: or shift the background to #262626 (4.55:1)
Aaon black
6.32:1passpassfail
  • AAA: use #21b021 as the text (7.3:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1fa31f as the background.

Brands using this color

mcpConnect your agent — build around #1fa31f
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 #1fa31f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fa31f-a2bea5-994edf-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