Color

#310cc6

#310cc6
hex#310cc6
rgbrgb(49, 12, 198)
hslhsl(252, 89%, 41%)
oklchoklch(0.398 0.244 274.2)
Closest name: Busty Blue (#3300cc)Relative luminance 0.0499

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a0c60c

#0c43c6 · #8e0cc6

#c6310c · #0cc631

Split-complementary

Open in tool →

#c68e0c · #43c60c

#c60c43 · #a0c60c · #0cc68e

Contrast

#310cc6 as textRatioAAAA largeAAAFix
Aaon white
10.51:1passpasspassPasses AAA — no fix needed.
Aaon black
2:1failfailfail
  • AA: use #7a5bf5 as the text (4.64:1)
  • AAA: use #9d87f8 as the text (7.25:1)
  • AA: or shift the background to #ababab (4.58:1)
  • AAA: or shift the background to #d4d4d4 (7.09:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #310cc6 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

#310cc6 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #310cc6
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 #310cc6 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/310cc6-a99cc4-dfb64e-281f2d-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