Color

#6fd501

#6fd501
hex#6fd501
rgbrgb(111, 213, 1)
hslhsl(89, 99%, 42%)
oklchoklch(0.78 0.228 135.2)
Closest name: Blinking Terminal (#66cc00)Relative luminance 0.5097

Colors that go with #6fd501

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 →

#6801d5

#d5d201 · #05d501

#016fd5 · #d5016f

Split-complementary

Open in tool →

#0105d5 · #d201d5

#01d5d2 · #6801d5 · #d50105

Contrast

#6fd501 as textRatioAAAA largeAAAFix
Aaon white
1.88:1failfailfail
  • AA: use #448401 as the text (4.62:1)
  • AAA: use #326000 as the text (7.48:1)
  • AA: or shift the background to #4d4d4d (4.51:1)
  • AAA: or shift the background to #303030 (7.04:1)
Aaon black
11.19:1passpasspassPasses 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 #6fd501 as the background.

Brands using this color

mcpConnect your agent — build around #6fd501
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 #6fd501 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/6fd501-adbea2-4e4edf-212d1f-f1f1e9?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