Color

#04caf1

#04caf1
hex#04caf1
rgbrgb(4, 202, 241)
hslhsl(190, 97%, 48%)
oklchoklch(0.775 0.139 218.5)
Closest name: deepskyblue (#00bfff)Relative luminance 0.4862

Tints & shades

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

Harmonies

Complementary

Open in tool →

#f12b04

#04f1a2 · #0453f1

#f104ca · #caf104

Split-complementary

Open in tool →

#f10453 · #f1a204

#a204f1 · #f12b04 · #53f104

Contrast

#04caf1 as textRatioAAAA largeAAAFix
Aaon white
1.96:1failfailfail
  • AA: use #027e97 as the text (4.74:1)
  • AAA: use #026174 as the text (7.08:1)
  • AA: or shift the background to #4a4a4a (4.53:1)
  • AAA: or shift the background to #2b2b2b (7.23:1)
Aaon black
10.72:1passpasspassPasses 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 #04caf1 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

#04caf1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #04caf1
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 #04caf1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/04caf1-a2b6be-df4e7c-1f252d-e9f1ef?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