Color

#5ac71f

#5ac71f
hex#5ac71f
rgbrgb(90, 199, 31)
hslhsl(99, 73%, 45%)
oklchoklch(0.736 0.216 137.8)
Closest name: Blinking Terminal (#66cc00)Relative luminance 0.4312

Colors that go with #5ac71f

Blue, Charcoal and Taupe 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 →

#8c1fc7

#adc71f · #1fc738

#1f5ac7 · #c71f5a

Split-complementary

Open in tool →

#381fc7 · #c71fad

#1fadc7 · #8c1fc7 · #c7381f

Contrast

#5ac71f as textRatioAAAA largeAAAFix
Aaon white
2.18:1failfailfail
  • AA: use #3c8415 as the text (4.66:1)
  • AAA: use #2e6510 as the text (7.03:1)
  • AA: or shift the background to #424242 (4.61:1)
  • AAA: or shift the background to #242424 (7.11:1)
Aaon black
9.62:1passpasspassPasses 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 #5ac71f as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #5ac71f
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 #5ac71f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5ac71f-a8bea2-664edf-1f2d21-f0f1e9?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