Color

#c8f221

#c8f221
hex#c8f221
rgbrgb(200, 242, 33)
hslhsl(72, 89%, 54%)
oklchoklch(0.9 0.211 121.7)
Closest name: Chartreuse (#c1f80a)Relative luminance 0.7589

Colors that go with #c8f221

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 →

#4b21f2

#f2b321 · #60f221

#21c8f2 · #f221c8

Split-complementary

Open in tool →

#2160f2 · #b321f2

#21f2b3 · #4b21f2 · #f22160

Contrast

#c8f221 as textRatioAAAA largeAAAFix
Aaon white
1.3:1failfailfail
  • AA: use #667d07 as the text (4.67:1)
  • AAA: use #4e6006 as the text (7:1)
  • AA: or shift the background to #636363 (4.63:1)
  • AAA: or shift the background to #474747 (7.16:1)
Aaon black
16.18:1passpasspassPasses 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 #c8f221 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 #c8f221
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 #c8f221 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/c8f221-b5bea2-4e77df-242d1f-f1efe9?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