Color

#1da3aa

#1da3aa
hex#1da3aa
rgbrgb(29, 163, 170)
hslhsl(183, 71%, 39%)
oklchoklch(0.653 0.106 200.5)
Closest name: Baltic (#279d9f)Relative luminance 0.2936

Colors that go with #1da3aa

Charcoal, Orange Red and Copper 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.

Real palettes that use #1da3aa

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa241d

#1daa6b · #1d5caa

#aa1da3 · #a3aa1d

Split-complementary

Open in tool →

#aa1d5c · #aa6b1d

#6b1daa · #aa241d · #5caa1d

Contrast

#1da3aa as textRatioAAAA largeAAAFix
Aaon white
3.06:1failpassfail
  • AA: use #178287 as the text (4.59:1)
  • AAA: use #116064 as the text (7.29:1)
  • AA: or shift the background to #2b2b2b (4.63:1)
Aaon black
6.87:1passpassfail
  • AAA: use #1ea7ae as the text (7.19:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #1da3aa as the background.

Brands using this color

Fonts for this mood

#1da3aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1da3aa
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 #1da3aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1da3aa-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