Color

#0051ad

#0051ad
hex#0051ad
rgbrgb(0, 81, 173)
hslhsl(212, 100%, 34%)
oklchoklch(0.452 0.162 257.3)
Closest name: Blasphemous Blue (#3356aa)Relative luminance 0.089

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ad5c00

#00a8ad · #0600ad

#ad0051 · #51ad00

Split-complementary

Open in tool →

#ad0600 · #a8ad00

#ad00a8 · #ad5c00 · #00ad06

Contrast

#0051ad as textRatioAAAA largeAAAFix
Aaon white
7.55:1passpasspassPasses AAA — no fix needed.
Aaon black
2.78:1failfailfail
  • AA: use #0070f0 as the text (4.58:1)
  • AAA: use #3d98ff as the text (7.13:1)
  • AA: or shift the background to #c9c9c9 (4.56:1)
  • AAA: or shift the background to #f7f7f7 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0051ad as the background.

Brands using this color

Fonts for this mood

#0051ad reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0051ad
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 #0051ad and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0051ad-9caac4-df564e-1f202d-e9f1f1?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