Color

#c5fc45

#c5fc45
hex#c5fc45
rgbrgb(197, 252, 69)
hslhsl(78, 97%, 63%)
oklchoklch(0.922 0.209 125.2)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.8192

Colors that go with #c5fc45

Blue, Crimson and Red 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 →

#7c45fc

#fcd845 · #6afc45

#45c5fc · #fc45c5

Split-complementary

Open in tool →

#456afc · #d845fc

#45fcd8 · #7c45fc · #fc456a

Contrast

#c5fc45 as textRatioAAAA largeAAAFix
Aaon white
1.21:1failfailfail
  • AA: use #587e02 as the text (4.77:1)
  • AAA: use #435f01 as the text (7.3:1)
  • AA: or shift the background to #696969 (4.54:1)
  • AAA: or shift the background to #4a4a4a (7.34:1)
Aaon black
17.38:1passpasspassPasses 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 #c5fc45 as the background.

Brands using this color

mcpConnect your agent — build around #c5fc45
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 #c5fc45 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c5fc45-b2bea2-4e69df-232d1f-f1f0e9?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