Color

#308d1b

#308d1b
hex#308d1b
rgbrgb(48, 141, 27)
hslhsl(109, 68%, 33%)
oklchoklch(0.567 0.17 140.6)
Closest name: Forest Green (#228b22)Relative luminance 0.1976

Colors that go with #308d1b

Crimson, Royal Blue and Charcoal 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 →

#781b8d

#698d1b · #1b8d3f

#1b308d · #8d1b30

Split-complementary

Open in tool →

#3f1b8d · #8d1b69

#1b698d · #781b8d · #8d3f1b

Contrast

#308d1b as textRatioAAAA largeAAAFix
Aaon white
4.24:1failpassfail
  • AA: use #2d8519 as the text (4.69:1)
  • AAA: use #216313 as the text (7.35:1)
  • AA: or shift the background to #0f0f0f (4.52:1)
Aaon black
4.95:1passpassfail
  • AAA: use #3aab21 as the text (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #308d1b 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 #308d1b
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 #308d1b and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/308d1b-a4bea2-7e4edf-1f2d23-eef1e9?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