Color

#30d5cf

#30d5cf
hex#30d5cf
rgbrgb(48, 213, 207)
hslhsl(178, 66%, 51%)
oklchoklch(0.793 0.128 191.1)
Closest name: mediumturquoise (#48d1cc)Relative luminance 0.5272

Colors that go with #30d5cf

Charcoal, Deep Sky Blue 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 →

#d53035

#30d57d · #3088d5

#cf30d5 · #d5cf30

Split-complementary

Open in tool →

#d53088 · #d57d30

#7d30d5 · #d53035 · #88d530

Contrast

#30d5cf as textRatioAAAA largeAAAFix
Aaon white
1.82:1failfailfail
  • AA: use #1b8380 as the text (4.56:1)
  • AAA: use #14615f as the text (7.23:1)
  • AA: or shift the background to #4f4f4f (4.5:1)
  • AAA: or shift the background to #303030 (7.26:1)
Aaon black
11.54:1passpasspassPasses 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 #30d5cf 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 #30d5cf
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 #30d5cf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30d5cf-a2bcbe-d45999-1f282d-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