Color

#45b0de

#45b0de
hex#45b0de
rgbrgb(69, 176, 222)
hslhsl(198, 70%, 57%)
oklchoklch(0.715 0.117 230.1)
Closest name: Cousteau (#55a9d6)Relative luminance 0.3759

Colors that go with #45b0de

Charcoal, Amber and Blue 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 →

#de7345

#45debf · #4563de

#de45b0 · #b0de45

Split-complementary

Open in tool →

#de4563 · #debf45

#bf45de · #de7345 · #63de45

Contrast

#45b0de as textRatioAAAA largeAAAFix
Aaon white
2.47:1failfailfail
  • AA: use #1e7fa9 as the text (4.5:1)
  • AAA: use #165f7e as the text (7.07:1)
  • AA: or shift the background to #3b3b3b (4.54:1)
  • AAA: or shift the background to #1a1a1a (7.06:1)
Aaon black
8.52:1passpasspassPasses 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 #45b0de as the background.

Brands using this color

Fonts for this mood

#45b0de reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45b0de
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 #45b0de and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45b0de-9cb3c4-df4e69-1f232d-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