Color

#1bb1bb

#1bb1bb
hex#1bb1bb
rgbrgb(27, 177, 187)
hslhsl(184, 75%, 42%)
oklchoklch(0.694 0.114 202.3)
Closest name: lightseagreen (#20b2aa)Relative luminance 0.3527

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bb251b

#1bbb76 · #1b60bb

#bb1bb1 · #b1bb1b

Split-complementary

Open in tool →

#bb1b60 · #bb761b

#761bbb · #bb251b · #60bb1b

Contrast

#1bb1bb as textRatioAAAA largeAAAFix
Aaon white
2.61:1failfailfail
  • AA: use #14828a as the text (4.58:1)
  • AAA: use #0f6167 as the text (7.18:1)
  • AA: or shift the background to #363636 (4.63:1)
  • AAA: or shift the background to #141414 (7.06:1)
Aaon black
8.05:1passpasspassPasses 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 #1bb1bb 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

#1bb1bb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1bb1bb
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 #1bb1bb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bb1bb-a2b9be-df4e8a-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