Color

#45adde

#45adde
hex#45adde
rgbrgb(69, 173, 222)
hslhsl(199, 70%, 57%)
oklchoklch(0.708 0.118 232.5)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3643

Colors that go with #45adde

Charcoal, Peru and Amber 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 →

#de7545

#45dec2 · #4561de

#de45ad · #adde45

Split-complementary

Open in tool →

#de4561 · #dec245

#c245de · #de7545 · #61de45

Contrast

#45adde as textRatioAAAA largeAAAFix
Aaon white
2.53:1failfailfail
  • AA: use #1e7da9 as the text (4.6:1)
  • AAA: use #165d7e as the text (7.24:1)
  • AA: or shift the background to #383838 (4.63:1)
  • AAA: or shift the background to #171717 (7.07:1)
Aaon black
8.29:1passpasspassPasses 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 #45adde as the background.

Brands using this color

Fonts for this mood

#45adde reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45adde
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 #45adde and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45adde-9cb3c4-df4e66-1f232d-e9f1f0?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