Color

#001eff

#001eff
hex#001eff
rgbrgb(0, 30, 255)
hslhsl(233, 100%, 50%)
oklchoklch(0.465 0.304 264.2)
Closest name: blue (#0000ff)Relative luminance 0.0815

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffe100

#009dff · #6200ff

#ff001e · #1eff00

Split-complementary

Open in tool →

#ff6200 · #9dff00

#ff009d · #ffe100 · #00ff62

Contrast

#001eff as textRatioAAAA largeAAAFix
Aaon white
7.99:1passpasspassPasses AAA — no fix needed.
Aaon black
2.63:1failfailfail
  • AA: use #5266ff as the text (4.7:1)
  • AAA: use #808eff as the text (7.23:1)
  • AA: or shift the background to #c4c4c4 (4.58:1)
  • AAA: or shift the background to #f0f0f0 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #001eff as the background.

Brands using this color

Fonts for this mood

#001eff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #001eff
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 #001eff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/001eff-9c9cc4-df884e-241f2d-e9eef1?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