Color

#1db3dd

#1db3dd
hex#1db3dd
rgbrgb(29, 179, 221)
hslhsl(193, 77%, 49%)
oklchoklch(0.713 0.128 223.4)
Closest name: Aquarius (#2db0ce)Relative luminance 0.3772

Colors that go with #1db3dd

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 →

#dd461d

#1ddda7 · #1d53dd

#dd1db3 · #b3dd1d

Split-complementary

Open in tool →

#dd1d53 · #dda71d

#a71ddd · #dd461d · #53dd1d

Contrast

#1db3dd as textRatioAAAA largeAAAFix
Aaon white
2.46:1failfailfail
  • AA: use #15809e as the text (4.55:1)
  • AAA: use #0f5f75 as the text (7.21:1)
  • AA: or shift the background to #3b3b3b (4.56:1)
  • AAA: or shift the background to #1a1a1a (7.08:1)
Aaon black
8.54:1passpasspassPasses 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 #1db3dd as the background.

Brands using this color

Palettes built around it

Fonts for this mood

#1db3dd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #1db3dd
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 #1db3dd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/1db3dd-a2b5be-df4e75-1f242d-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