Color

#042dd2

#042dd2
hex#042dd2
rgbrgb(4, 45, 210)
hslhsl(228, 96%, 42%)
oklchoklch(0.425 0.247 264.4)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0656

Tints & shades

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

Harmonies

Complementary

Open in tool →

#d2a904

#0494d2 · #4204d2

#d2042d · #2dd204

Split-complementary

Open in tool →

#d24204 · #94d204

#d20494 · #d2a904 · #04d242

Contrast

#042dd2 as textRatioAAAA largeAAAFix
Aaon white
9.09:1passpasspassPasses AAA — no fix needed.
Aaon black
2.31:1failfailfail
  • AA: use #4166fb as the text (4.52:1)
  • AAA: use #738efc as the text (7:1)
  • AA: or shift the background to #b8b8b8 (4.58:1)
  • AAA: or shift the background to #e3e3e3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #042dd2 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

#042dd2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #042dd2
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 #042dd2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/042dd2-9c9fc4-df7c4e-231f2d-e9eff1?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