Color

#1bbdc5

#1bbdc5
hex#1bbdc5
rgbrgb(27, 189, 197)
hslhsl(183, 76%, 44%)
oklchoklch(0.728 0.12 200.4)
Closest name: Blue Bobbin (#52b4ca)Relative luminance 0.4066

Colors that go with #1bbdc5

Charcoal, Dodger Blue and Midnight 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 →

#c5231b

#1bc579 · #1b68c5

#c51bbd · #bdc51b

Split-complementary

Open in tool →

#c51b68 · #c5791b

#791bc5 · #c5231b · #68c51b

Contrast

#1bbdc5 as textRatioAAAA largeAAAFix
Aaon white
2.3:1failfailfail
  • AA: use #128187 as the text (4.65:1)
  • AAA: use #0e6367 as the text (7:1)
  • AA: or shift the background to #404040 (4.51:1)
  • AAA: or shift the background to #212121 (7:1)
Aaon black
9.13:1passpasspassPasses 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 #1bbdc5 as the background.

Brands using this color

Fonts for this mood

#1bbdc5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1bbdc5
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 #1bbdc5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1bbdc5-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