Color

#03e203

#03e203
hex#03e203
rgbrgb(3, 226, 3)
hslhsl(120, 97%, 45%)
oklchoklch(0.791 0.269 142.5)
Closest name: Alarming Slime (#2ce335)Relative luminance 0.5442

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#e203e2

#73e203 · #03e273

#0303e2 · #e20303

Split-complementary

Open in tool →

#7303e2 · #e20373

#0373e2 · #e203e2 · #e27303

Contrast

#03e203 as textRatioAAAA largeAAAFix
Aaon white
1.77:1failfailfail
  • AA: use #028802 as the text (4.64:1)
  • AAA: use #026402 as the text (7.43:1)
  • AA: or shift the background to #4f4f4f (4.64:1)
  • AAA: or shift the background to #333333 (7.15:1)
Aaon black
11.88:1passpasspassPasses 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 #03e203 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 #03e203
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #03e203 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03e203-a2bea5-994edf-1f2d25-edf1e9?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