Color

#030cbf

#030cbf
hex#030cbf
rgbrgb(3, 12, 191)
hslhsl(237, 97%, 38%)
oklchoklch(0.37 0.247 264.5)
Closest name: mediumblue (#0000cd)Relative luminance 0.0404

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bfb503

#036abf · #5803bf

#bf030c · #0cbf03

Split-complementary

Open in tool →

#bf5803 · #6abf03

#bf036a · #bfb503 · #03bf58

Contrast

#030cbf as textRatioAAAA largeAAAFix
Aaon white
11.61:1passpasspassPasses AAA — no fix needed.
Aaon black
1.81:1failfailfail
  • AA: use #5961fc as the text (4.54:1)
  • AAA: use #868cfd as the text (7.18:1)
  • AA: or shift the background to #a3a3a3 (4.6:1)
  • AAA: or shift the background to #c9c9c9 (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 #030cbf as the background.

Brands using this color

Fonts for this mood

#030cbf reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030cbf
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 #030cbf and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030cbf-9f9cc4-df924e-251f2d-e9edf1?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