Color

#1fa321

#1fa321
hex#1fa321
rgbrgb(31, 163, 33)
hslhsl(121, 68%, 38%)
oklchoklch(0.624 0.197 142.9)
Closest name: Hedged Garden (#00aa11)Relative luminance 0.266

Colors that go with #1fa321

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 →

#a31fa1

#5fa31f · #1fa363

#211fa3 · #a3211f

Split-complementary

Open in tool →

#631fa3 · #a31f5f

#1f5fa3 · #a31fa1 · #a3631f

Contrast

#1fa321 as textRatioAAAA largeAAAFix
Aaon white
3.32:1failpassfail
  • AA: use #1a891c as the text (4.53:1)
  • AAA: use #146715 as the text (7.05:1)
  • AA: or shift the background to #262626 (4.55:1)
Aaon black
6.32:1passpassfail
  • AAA: use #21b024 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 #1fa321 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 #1fa321
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 #1fa321 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1fa321-a2bea6-9b4edf-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