Color

#319b66

#319b66
hex#319b66
rgbrgb(49, 155, 102)
hslhsl(150, 52%, 40%)
oklchoklch(0.616 0.126 157.3)
Closest name: Bulma Hair (#359e6b)Relative luminance 0.2505

Colors that go with #319b66

Charcoal, Crimson and Blue 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 →

#9b3166

#319b31 · #319b9b

#66319b · #9b6631

Split-complementary

Open in tool →

#9b319b · #9b3131

#31319b · #9b3166 · #9b9b31

Contrast

#319b66 as textRatioAAAA largeAAAFix
Aaon white
3.49:1failpassfail
  • AA: use #2a8457 as the text (4.63:1)
  • AAA: use #1f6140 as the text (7.39:1)
  • AA: or shift the background to #212121 (4.61:1)
Aaon black
6.01:1passpassfail
  • AAA: use #36ab70 as the text (7.22:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #319b66 as the background.

Brands using this color

mcpConnect your agent — build around #319b66
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 #319b66 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/319b66-a2beb3-d459d2-1f2d2c-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