Color

#390fd2

#390fd2
hex#390fd2
rgbrgb(57, 15, 210)
hslhsl(253, 87%, 44%)
oklchoklch(0.419 0.254 275.6)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0586

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a8d20f

#0f46d2 · #9a0fd2

#d2390f · #0fd239

Split-complementary

Open in tool →

#d29a0f · #46d20f

#d20f46 · #a8d20f · #0fd29a

Contrast

#390fd2 as textRatioAAAA largeAAAFix
Aaon white
9.66:1passpasspassPasses AAA — no fix needed.
Aaon black
2.17:1failfailfail
  • AA: use #7a58f3 as the text (4.52:1)
  • AAA: use #a088f7 as the text (7.36:1)
  • AA: or shift the background to #b3b3b3 (4.61:1)
  • AAA: or shift the background to #dedede (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 #390fd2 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

#390fd2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #390fd2
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 #390fd2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/390fd2-a99cc4-dfb84e-281f2d-e9ebf1?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