Color

#0000fa

#0000fa
hex#0000fa
rgbrgb(0, 0, 250)
hslhsl(240, 100%, 49%)
oklchoklch(0.445 0.309 264.1)
Closest name: blue (#0000ff)Relative luminance 0.069

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fafa00

#007dfa · #7d00fa

#fa0000 · #00fa00

Split-complementary

Open in tool →

#fa7d00 · #7dfa00

#fa007d · #fafa00 · #00fa7d

Contrast

#0000fa as textRatioAAAA largeAAAFix
Aaon white
8.82:1passpasspassPasses AAA — no fix needed.
Aaon black
2.38:1failfailfail
  • AA: use #6161ff as the text (4.66:1)
  • AAA: use #8a8aff as the text (7.16:1)
  • AA: or shift the background to #bababa (4.55:1)
  • AAA: or shift the background to #e6e6e6 (7.07:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0000fa as the background.

Brands using this color

Fonts for this mood

#0000fa reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0000fa
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 #0000fa and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0000fa-a19cc4-df994e-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