Color

#030bdd

#030bdd
hex#030bdd
rgbrgb(3, 11, 221)
hslhsl(238, 97%, 44%)
oklchoklch(0.411 0.278 264.4)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0548

Tints & shades

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

Harmonies

Complementary

Open in tool →

#ddd603

#0377dd · #6903dd

#dd030b · #0bdd03

Split-complementary

Open in tool →

#dd6903 · #77dd03

#dd0377 · #ddd603 · #03dd69

Contrast

#030bdd as textRatioAAAA largeAAAFix
Aaon white
10.02:1passpasspassPasses AAA — no fix needed.
Aaon black
2.1:1failfailfail
  • AA: use #5e64fd as the text (4.72:1)
  • AAA: use #868afd as the text (7.07:1)
  • AA: or shift the background to #b0b0b0 (4.62:1)
  • AAA: or shift the background to #d9d9d9 (7.1:1)

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

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

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

tool url/palettes/new/030bdd-9f9cc4-df944e-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