Color

#1da5aa

#1da5aa
hex#1da5aa
rgbrgb(29, 165, 170)
hslhsl(182, 71%, 39%)
oklchoklch(0.658 0.107 198.9)
Closest name: Baltic (#279d9f)Relative luminance 0.3007

Tints & shades

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

Harmonies

Complementary

Open in tool →

#aa221d

#1daa68 · #1d5faa

#aa1da5 · #a5aa1d

Split-complementary

Open in tool →

#aa1d5f · #aa681d

#681daa · #aa221d · #5faa1d

Contrast

#1da5aa as textRatioAAAA largeAAAFix
Aaon white
2.99:1failfailfail
  • AA: use #178387 as the text (4.53:1)
  • AAA: use #116264 as the text (7.11:1)
  • AA: or shift the background to #2e2e2e (4.54:1)
  • AAA: or shift the background to #000000 (7.01:1)
Aaon black
7.01:1passpasspassPasses 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 #1da5aa 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

#1da5aa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1da5aa
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 #1da5aa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1da5aa-a2babe-d45990-1f272d-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