Color

#4028dc

#4028dc
hex#4028dc
rgbrgb(64, 40, 220)
hslhsl(248, 72%, 51%)
oklchoklch(0.454 0.25 275.8)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0777

Tints & shades

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

Harmonies

Complementary

Open in tool →

#c4dc28

#286adc · #9a28dc

#dc4028 · #28dc40

Split-complementary

Open in tool →

#dc9a28 · #6adc28

#dc286a · #c4dc28 · #28dc9a

Contrast

#4028dc as textRatioAAAA largeAAAFix
Aaon white
8.22:1passpasspassPasses AAA — no fix needed.
Aaon black
2.55:1failfailfail
  • AA: use #7361e5 as the text (4.57:1)
  • AAA: use #9689ec as the text (7.09:1)
  • AA: or shift the background to #c2c2c2 (4.61:1)
  • AAA: or shift the background to #ededed (7.02:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #4028dc 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

#4028dc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #4028dc
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 #4028dc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/4028dc-a69cc4-dfac4e-271f2d-e9ecf1?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