Color

#30b4bb

#30b4bb
hex#30b4bb
rgbrgb(48, 180, 187)
hslhsl(183, 59%, 46%)
oklchoklch(0.705 0.109 200.4)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3686

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#bb3730

#30bb7c · #306ebb

#bb30b4 · #b4bb30

Split-complementary

Open in tool →

#bb306e · #bb7c30

#7c30bb · #bb3730 · #6ebb30

Contrast

#30b4bb as textRatioAAAA largeAAAFix
Aaon white
2.51:1failfailfail
  • AA: use #238186 as the text (4.61:1)
  • AAA: use #1a6265 as the text (7.05:1)
  • AA: or shift the background to #383838 (4.67:1)
  • AAA: or shift the background to #171717 (7.15:1)
Aaon black
8.37:1passpasspassPasses 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 #30b4bb as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#30b4bb reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #30b4bb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #30b4bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/30b4bb-a2b9be-d4598e-1f262d-e9f1ee?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