Color

#4ed803

#4ed803
hex#4ed803
rgbrgb(78, 216, 3)
hslhsl(99, 97%, 43%)
oklchoklch(0.776 0.245 139.2)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5074

Colors that go with #4ed803

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 →

#8e03d8

#b8d803 · #03d823

#034ed8 · #d8034e

Split-complementary

Open in tool →

#2303d8 · #d803b8

#03b8d8 · #8e03d8 · #d82303

Contrast

#4ed803 as textRatioAAAA largeAAAFix
Aaon white
1.88:1failfailfail
  • AA: use #318802 as the text (4.51:1)
  • AAA: use #246402 as the text (7.24:1)
  • AA: or shift the background to #4a4a4a (4.7:1)
  • AAA: or shift the background to #303030 (7.01:1)
Aaon black
11.15:1passpasspassPasses 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 #4ed803 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 #4ed803
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 #4ed803 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4ed803-a8bea2-664edf-1f2d21-f0f1e9?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