Color

#390ba2

#390ba2
hex#390ba2
rgbrgb(57, 11, 162)
hslhsl(258, 87%, 34%)
oklchoklch(0.36 0.205 282.5)
Closest name: Galactic Highway (#3311bb)Relative luminance 0.0372

Tints & shades

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

Harmonies

Complementary

Open in tool →

#75a20b

#0b29a2 · #840ba2

#a2390b · #0ba239

Split-complementary

Open in tool →

#a2840b · #29a20b

#a20b29 · #75a20b · #0ba284

Contrast

#390ba2 as textRatioAAAA largeAAAFix
Aaon white
12.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #8758f3 as the text (4.72:1)
  • AAA: use #a683f6 as the text (7.2:1)
  • AA: or shift the background to #a1a1a1 (4.66:1)
  • AAA: or shift the background to #c7c7c7 (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #390ba2 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

#390ba2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #390ba2
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 #390ba2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/390ba2-ad9cc4-dfc44e-291f2d-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