Color

#30bbb1

#30bbb1
hex#30bbb1
rgbrgb(48, 187, 177)
hslhsl(176, 59%, 46%)
oklchoklch(0.719 0.115 187.7)
Closest name: Emerald Bliss (#4cbdac)Relative luminance 0.3934

Colors that go with #30bbb1

Charcoal, Crimson and Denim 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 →

#bb3039

#30bb6c · #307fbb

#b130bb · #bbb130

Split-complementary

Open in tool →

#bb307f · #bb6c30

#6c30bb · #bb3039 · #7fbb30

Contrast

#30bbb1 as textRatioAAAA largeAAAFix
Aaon white
2.37:1failfailfail
  • AA: use #21827b as the text (4.62:1)
  • AAA: use #19615c as the text (7.23:1)
  • AA: or shift the background to #3d3d3d (4.59:1)
  • AAA: or shift the background to #1c1c1c (7.2:1)
Aaon black
8.87:1passpasspassPasses 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 #30bbb1 as the background.

Brands using this color

mcpConnect your agent — build around #30bbb1
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 #30bbb1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30bbb1-a2bdbe-d4599d-1f282d-e9f1ed?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