Color

#add421

#add421
hex#add421
rgbrgb(173, 212, 33)
hslhsl(73, 73%, 48%)
oklchoklch(0.813 0.19 122.4)
Closest name: yellowgreen (#9acd32)Relative luminance 0.5608

Colors that go with #add421

Deep Sky Blue, Crimson and Denim 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 →

#4821d4

#d4a121 · #54d421

#21add4 · #d421ad

Split-complementary

Open in tool →

#2154d4 · #a121d4

#21d4a1 · #4821d4 · #d42154

Contrast

#add421 as textRatioAAAA largeAAAFix
Aaon white
1.72:1failfailfail
  • AA: use #657c13 as the text (4.72:1)
  • AAA: use #4c5d0e as the text (7.29:1)
  • AA: or shift the background to #525252 (4.55:1)
  • AAA: or shift the background to #363636 (7.03:1)
Aaon black
12.22:1passpasspassPasses 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 #add421 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 #add421
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 #add421 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/add421-b5bea2-4e75df-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