Color

#77c403

#77c403
hex#77c403
rgbrgb(119, 196, 3)
hslhsl(84, 97%, 39%)
oklchoklch(0.741 0.206 132.1)
Closest name: Blinking Terminal (#66cc00)Relative luminance 0.4341

Colors that go with #77c403

Blue, Charcoal 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 →

#5003c4

#c4b103 · #16c403

#0377c4 · #c40377

Split-complementary

Open in tool →

#0316c4 · #b103c4

#03c4b1 · #5003c4 · #c40316

Contrast

#77c403 as textRatioAAAA largeAAAFix
Aaon white
2.17:1failfailfail
  • AA: use #4f8302 as the text (4.59:1)
  • AAA: use #3a5f01 as the text (7.45:1)
  • AA: or shift the background to #424242 (4.63:1)
  • AAA: or shift the background to #242424 (7.16:1)
Aaon black
9.68:1passpasspassPasses 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 #77c403 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 #77c403
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 #77c403 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/77c403-afbea2-4e5adf-222d1f-f1f0e9?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