Color

#004ffa

#004ffa
hex#004ffa
rgbrgb(0, 79, 250)
hslhsl(221, 100%, 49%)
oklchoklch(0.518 0.26 263)
Closest name: C64 Blue (#003aff)Relative luminance 0.1249

Tints & shades

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

Harmonies

Complementary

Open in tool →

#faab00

#00ccfa · #2e00fa

#fa004f · #4ffa00

Split-complementary

Open in tool →

#fa2e00 · #ccfa00

#fa00cc · #faab00 · #00fa2e

Contrast

#004ffa as textRatioAAAA largeAAAFix
Aaon white
6:1passpassfail
  • AAA: use #0047e0 as the text (7.05:1)
Aaon black
3.5:1failpassfail
  • AA: use #2469ff as the text (4.54:1)
  • AAA: use #6193ff as the text (7.13:1)
  • AA: or shift the background to #e0e0e0 (4.55:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #004ffa as the background.

Brands using this color

Fonts for this mood

#004ffa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #004ffa
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 #004ffa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/004ffa-9ca4c4-df6b4e-211f2d-e9eff1?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