Color

#030ffc

#030ffc
hex#030ffc
rgbrgb(3, 15, 252)
hslhsl(237, 98%, 50%)
oklchoklch(0.454 0.307 264.3)
Closest name: blue (#0000ff)Relative luminance 0.0739

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fcf003

#038cfc · #7303fc

#fc030f · #0ffc03

Split-complementary

Open in tool →

#fc7303 · #8cfc03

#fc038c · #fcf003 · #03fc73

Contrast

#030ffc as textRatioAAAA largeAAAFix
Aaon white
8.48:1passpasspassPasses AAA — no fix needed.
Aaon black
2.48:1failfailfail
  • AA: use #5861fd as the text (4.54:1)
  • AAA: use #868cfe as the text (7.2:1)
  • AA: or shift the background to #bdbdbd (4.51:1)
  • AAA: or shift the background to #ebebeb (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030ffc as the background.

Brands using this color

Fonts for this mood

#030ffc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030ffc
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 #030ffc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030ffc-9f9cc4-df924e-251f2d-e9edf1?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