Color

#0428dc

#0428dc
hex#0428dc
rgbrgb(4, 40, 220)
hslhsl(230, 96%, 44%)
oklchoklch(0.431 0.262 264.5)
Closest name: Brutally Blue (#0022dd)Relative luminance 0.0671

Tints & shades

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

Harmonies

Complementary

Open in tool →

#dcb804

#0494dc · #4c04dc

#dc0428 · #28dc04

Split-complementary

Open in tool →

#dc4c04 · #94dc04

#dc0494 · #dcb804 · #04dc4c

Contrast

#0428dc as textRatioAAAA largeAAAFix
Aaon white
8.97:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #4b68fb as the text (4.67:1)
  • AAA: use #788efc as the text (7.07:1)
  • AA: or shift the background to #b8b8b8 (4.52:1)
  • AAA: or shift the background to #e6e6e6 (7.18:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0428dc 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

#0428dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0428dc
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 #0428dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0428dc-9c9ec4-df814e-231f2d-e9eef1?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