Color

#306e56

#306e56
hex#306e56
rgbrgb(48, 110, 86)
hslhsl(157, 39%, 31%)
oklchoklch(0.49 0.076 165.5)
Closest name: Forest Serenade (#336644)Relative luminance 0.1245

Colors that go with #306e56

Charcoal, Crimson and Medium Violet Red 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 →

#6e3048

#306e37 · #30676e

#56306e · #6e5630

Split-complementary

Open in tool →

#6e3067 · #6e3730

#37306e · #6e3048 · #676e30

Contrast

#306e56 as textRatioAAAA largeAAAFix
Aaon white
6.02:1passpassfail
  • AAA: use #2a604b as the text (7.31:1)
Aaon black
3.49:1failpassfail
  • AA: use #3a8367 as the text (4.62:1)
  • AAA: use #49a783 as the text (7.14:1)
  • AA: or shift the background to #e0e0e0 (4.56:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #306e56 as the background.

Brands using this color

Palettes built around it

mcpConnect your agent — build around #306e56
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 #306e56 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/306e56-a2beb7-d459c4-1f2c2d-e9f1ea?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