Color

#43d803

#43d803
hex#43d803
rgbrgb(67, 216, 3)
hslhsl(102, 97%, 43%)
oklchoklch(0.773 0.249 140.1)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5031

Colors that go with #43d803

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 →

#9803d8

#add803 · #03d82e

#0343d8 · #d80343

Split-complementary

Open in tool →

#2e03d8 · #d803ad

#03add8 · #9803d8 · #d82e03

Contrast

#43d803 as textRatioAAAA largeAAAFix
Aaon white
1.9:1failfailfail
  • AA: use #2a8802 as the text (4.54:1)
  • AAA: use #1f6402 as the text (7.29:1)
  • AA: or shift the background to #4a4a4a (4.67:1)
  • AAA: or shift the background to #2e2e2e (7.15:1)
Aaon black
11.06:1passpasspassPasses 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 #43d803 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 #43d803
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 #43d803 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/43d803-a7bea2-6e4edf-1f2d21-eff1e9?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