Color

#815bb3

#815bb3
hex#815bb3
rgbrgb(129, 91, 179)
hslhsl(266, 37%, 53%)
oklchoklch(0.55 0.137 302)
Closest name: Lusty Lavender (#8d5eb7)Relative luminance 0.154

Tints & shades

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

Harmonies

Complementary

Open in tool →

#8db35b

#5b61b3 · #ae5bb3

#b3815b · #5bb381

Split-complementary

Open in tool →

#b3ae5b · #61b35b

#b35b61 · #8db35b · #5bb3ae

Contrast

#815bb3 as textRatioAAAA largeAAAFix
Aaon white
5.15:1passpassfail
  • AAA: use #6b479a as the text (7.02:1)
Aaon black
4.08:1failpassfail
  • AA: use #8965b8 as the text (4.62:1)
  • AAA: use #a78cca as the text (7.25:1)
  • AA: or shift the background to #f0f0f0 (4.52:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #815bb3 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

#815bb3 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #815bb3
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 #815bb3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/815bb3-b29cc4-dfd74e-2b1f2d-e9eaf1?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