Color

#381bda

#381bda
hex#381bda
rgbrgb(56, 27, 218)
hslhsl(249, 78%, 48%)
oklchoklch(0.436 0.257 274.2)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0669

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bdda1b

#1b5eda · #971bda

#da381b · #1bda38

Split-complementary

Open in tool →

#da971b · #5eda1b

#da1b5e · #bdda1b · #1bda97

Contrast

#381bda as textRatioAAAA largeAAAFix
Aaon white
8.98:1passpasspassPasses AAA — no fix needed.
Aaon black
2.34:1failfailfail
  • AA: use #7560eb as the text (4.63:1)
  • AAA: use #9989f0 as the text (7.19:1)
  • AA: or shift the background to #b8b8b8 (4.53:1)
  • AAA: or shift the background to #e3e3e3 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #381bda 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

#381bda reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #381bda
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 #381bda and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/381bda-a79cc4-dfae4e-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