Color

#45e4fc

#45e4fc
hex#45e4fc
rgbrgb(69, 228, 252)
hslhsl(188, 97%, 63%)
oklchoklch(0.848 0.131 209.8)
Closest name: Aqua (#0ff0fe)Relative luminance 0.6378

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fc5e45

#45fcb9 · #4588fc

#fc45e4 · #e4fc45

Split-complementary

Open in tool →

#fc4588 · #fcb945

#b945fc · #fc5e45 · #88fc45

Contrast

#45e4fc as textRatioAAAA largeAAAFix
Aaon white
1.53:1failfailfail
  • AA: use #027f92 as the text (4.72:1)
  • AAA: use #02606f as the text (7.23:1)
  • AA: or shift the background to #595959 (4.59:1)
  • AAA: or shift the background to #3d3d3d (7.12:1)
Aaon black
13.76:1passpasspassPasses 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 #45e4fc 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

#45e4fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45e4fc
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — generate_palette, check_contrast, analyze_color — read-only, no key. Every palette it proposes comes with a /palettes/new/… link: open it, lock what you like, paste the link back.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #45e4fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45e4fc-a2b7be-df4e81-1f252d-e9f1ee?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