Color

#003bd1

#003bd1
hex#003bd1
rgbrgb(0, 59, 209)
hslhsl(223, 100%, 41%)
oklchoklch(0.444 0.233 263.4)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0773

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d19600

#00a4d1 · #2d00d1

#d1003b · #3bd100

Split-complementary

Open in tool →

#d12d00 · #a4d100

#d100a4 · #d19600 · #00d12d

Contrast

#003bd1 as textRatioAAAA largeAAAFix
Aaon white
8.25:1passpasspassPasses AAA — no fix needed.
Aaon black
2.55:1failfailfail
  • AA: use #2e69ff as the text (4.58:1)
  • AAA: use #6691ff as the text (7.06:1)
  • AA: or shift the background to #c2c2c2 (4.63:1)
  • AAA: or shift the background to #ededed (7.04:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #003bd1 as the background.

Brands using this color

Fonts for this mood

#003bd1 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #003bd1
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 #003bd1 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/003bd1-9ca3c4-df704e-211f2d-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