Color

#003cff

#003cff
hex#003cff
rgbrgb(0, 60, 255)
hslhsl(226, 100%, 50%)
oklchoklch(0.496 0.284 263.9)
Closest name: C64 Blue (#003aff)Relative luminance 0.1045

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ffc400

#00bbff · #4400ff

#ff003c · #3cff00

Split-complementary

Open in tool →

#ff4400 · #bbff00

#ff00bb · #ffc400 · #00ff44

Contrast

#003cff as textRatioAAAA largeAAAFix
Aaon white
6.8:1passpassfail
  • AAA: use #003afa as the text (7.03:1)
Aaon black
3.09:1failpassfail
  • AA: use #3867ff as the text (4.55:1)
  • AAA: use #7092ff as the text (7.24:1)
  • AA: or shift the background to #d4d4d4 (4.58:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003cff 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

#003cff reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003cff
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 #003cff and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003cff-9ca1c4-df774e-221f2d-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