Color

#45f3fc

#45f3fc
hex#45f3fc
rgbrgb(69, 243, 252)
hslhsl(183, 97%, 63%)
oklchoklch(0.883 0.136 200.2)
Closest name: Aqua (#0ff0fe)Relative luminance 0.7239

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fc4e45

#45fcaa · #4597fc

#fc45f3 · #f3fc45

Split-complementary

Open in tool →

#fc4597 · #fcaa45

#aa45fc · #fc4e45 · #97fc45

Contrast

#45f3fc as textRatioAAAA largeAAAFix
Aaon white
1.36:1failfailfail
  • AA: use #028188 as the text (4.67:1)
  • AAA: use #026064 as the text (7.34:1)
  • AA: or shift the background to #616161 (4.57:1)
  • AAA: or shift the background to #454545 (7.07:1)
Aaon black
15.48:1passpasspassPasses 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 #45f3fc 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

#45f3fc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #45f3fc
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 #45f3fc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/45f3fc-a2b9be-d4598e-1f262d-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