Color

#3ab3df

#3ab3df
hex#3ab3df
rgbrgb(58, 179, 223)
hslhsl(196, 72%, 55%)
oklchoklch(0.719 0.121 226.9)
Closest name: Blue Martini (#52b4d3)Relative luminance 0.3847

Colors that go with #3ab3df

Charcoal, Amber and Dark Orange 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 →

#df663a

#3adfb8 · #3a60df

#df3ab3 · #b3df3a

Split-complementary

Open in tool →

#df3a60 · #dfb83a

#b83adf · #df663a · #60df3a

Contrast

#3ab3df as textRatioAAAA largeAAAFix
Aaon white
2.42:1failfailfail
  • AA: use #1a7ea2 as the text (4.62:1)
  • AAA: use #145f7b as the text (7.11:1)
  • AA: or shift the background to #3b3b3b (4.64:1)
  • AAA: or shift the background to #1c1c1c (7.06:1)
Aaon black
8.69:1passpasspassPasses 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 #3ab3df as the background.

Brands using this color

Fonts for this mood

#3ab3df reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #3ab3df
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 #3ab3df and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3ab3df-9cb5c4-df4e6e-1f232d-e9f1ef?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