Color

#04f3fb

#04f3fb
hex#04f3fb
rgbrgb(4, 243, 251)
hslhsl(182, 97%, 50%)
oklchoklch(0.876 0.149 199.1)
Closest name: Aqua (#0ff0fe)Relative luminance 0.7109

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb0c04

#04fb88 · #0477fb

#fb04f3 · #f3fb04

Split-complementary

Open in tool →

#fb0477 · #fb8804

#8804fb · #fb0c04 · #77fb04

Contrast

#04f3fb as textRatioAAAA largeAAAFix
Aaon white
1.38:1failfailfail
  • AA: use #028388 as the text (4.56:1)
  • AAA: use #026164 as the text (7.25:1)
  • AA: or shift the background to #5e5e5e (4.7:1)
  • AAA: or shift the background to #424242 (7.28:1)
Aaon black
15.22:1passpasspassPasses 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 #04f3fb 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

#04f3fb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04f3fb
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 #04f3fb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04f3fb-a2babe-d45990-1f272d-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