Color

#030cb5

#030cb5
hex#030cb5
rgbrgb(3, 12, 181)
hslhsl(237, 97%, 36%)
oklchoklch(0.357 0.237 264.6)
Closest name: Dark Galaxy (#0018a8)Relative luminance 0.0362

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b5ac03

#0365b5 · #5303b5

#b5030c · #0cb503

Split-complementary

Open in tool →

#b55303 · #65b503

#b50365 · #b5ac03 · #03b553

Contrast

#030cb5 as textRatioAAAA largeAAAFix
Aaon white
12.18:1passpasspassPasses AAA — no fix needed.
Aaon black
1.72:1failfailfail
  • AA: use #5961fc as the text (4.54:1)
  • AAA: use #868cfd as the text (7.18:1)
  • AA: or shift the background to #9e9e9e (4.55:1)
  • AAA: or shift the background to #c7c7c7 (7.21:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030cb5 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

#030cb5 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030cb5
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 #030cb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030cb5-9f9cc4-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