Color

#03aa78

#03aa78
hex#03aa78
rgbrgb(3, 170, 120)
hslhsl(162, 97%, 34%)
oklchoklch(0.653 0.14 163.5)
Closest name: Cosmic Green (#30a877)Relative luminance 0.3012

Colors that go with #03aa78

Charcoal, Blue and Crimson 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 →

#ab0335

#03ab24 · #0389ab

#7803ab · #ab7803

Split-complementary

Open in tool →

#ab0389 · #ab2403

#2403ab · #ab0335 · #89ab03

Contrast

#03aa78 as textRatioAAAA largeAAAFix
Aaon white
2.99:1failfailfail
  • AA: use #02835c as the text (4.77:1)
  • AAA: use #026447 as the text (7.2:1)
  • AA: or shift the background to #2e2e2e (4.54:1)
  • AAA: or shift the background to #000000 (7.02:1)
Aaon black
7.02:1passpasspassPasses 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 #03aa78 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Palettes built around it

mcpConnect your agent — build around #03aa78
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 #03aa78 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/03aa78-a2beb9-d459b9-1f2b2d-e9f1eb?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