Color

#80d421

#80d421
hex#80d421
rgbrgb(128, 212, 33)
hslhsl(88, 73%, 48%)
oklchoklch(0.786 0.212 132.9)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5179

Colors that go with #80d421

Deep Sky Blue, Royal Blue 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 →

#7421d4

#d4ce21 · #27d421

#2180d4 · #d42180

Split-complementary

Open in tool →

#2127d4 · #ce21d4

#21d4ce · #7421d4 · #d42127

Contrast

#80d421 as textRatioAAAA largeAAAFix
Aaon white
1.85:1failfailfail
  • AA: use #508415 as the text (4.51:1)
  • AAA: use #3b610f as the text (7.23:1)
  • AA: or shift the background to #4d4d4d (4.57:1)
  • AAA: or shift the background to #303030 (7.14:1)
Aaon black
11.36:1passpasspassPasses 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 #80d421 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 #80d421
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 #80d421 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/80d421-aebea2-4e51df-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