Color

#003beb

#003beb
hex#003beb
rgbrgb(0, 59, 235)
hslhsl(225, 100%, 46%)
oklchoklch(0.472 0.263 263.8)
Closest name: C64 Blue (#003aff)Relative luminance 0.0913

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ebb000

#00b0eb · #3b00eb

#eb003b · #3beb00

Split-complementary

Open in tool →

#eb3b00 · #b0eb00

#eb00b0 · #ebb000 · #00eb3b

Contrast

#003beb as textRatioAAAA largeAAAFix
Aaon white
7.43:1passpasspassPasses AAA — no fix needed.
Aaon black
2.83:1failfailfail
  • AA: use #386aff as the text (4.67:1)
  • AAA: use #6b90ff as the text (7.06:1)
  • AA: or shift the background to #cccccc (4.63:1)
  • AAA: or shift the background to #fafafa (7.12:1)

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

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

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

tool url/palettes/new/003beb-9ca1c4-df754e-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