Color

#0da3a5

#0da3a5
hex#0da3a5
rgbrgb(13, 163, 165)
hslhsl(181, 85%, 35%)
oklchoklch(0.649 0.109 196.4)
Closest name: Baltic (#279d9f)Relative luminance 0.29

Colors that go with #0da3a5

Charcoal, 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 #0da3a5

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a5100d

#0da55c · #0d57a5

#a50da3 · #a3a50d

Split-complementary

Open in tool →

#a50d57 · #a55c0d

#5c0da5 · #a5100d · #57a50d

Contrast

#0da3a5 as textRatioAAAA largeAAAFix
Aaon white
3.09:1failpassfail
  • AA: use #0b8284 as the text (4.63:1)
  • AAA: use #086263 as the text (7.15:1)
  • AA: or shift the background to #2b2b2b (4.58:1)
Aaon black
6.8:1passpassfail
  • AAA: use #0ea7aa as the text (7.13:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0da3a5 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

#0da3a5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0da3a5
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 #0da3a5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0da3a5-a2babe-d45992-1f272d-e9f1ed?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