Color

#803bb5

#803bb5
hex#803bb5
rgbrgb(128, 59, 181)
hslhsl(274, 51%, 47%)
oklchoklch(0.502 0.187 306.8)
Closest name: Fuchsia Nebula (#7722aa)Relative luminance 0.1105

Colors that go with #803bb5

Olive Green, Sea Green and Charcoal lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#70b53b

#433bb5 · #b53bad

#b5803b · #3bb580

Split-complementary

Open in tool →

#adb53b · #3bb543

#b5433b · #70b53b · #3badb5

Contrast

#803bb5 as textRatioAAAA largeAAAFix
Aaon white
6.54:1passpassfail
  • AAA: use #7837a9 as the text (7.2:1)
Aaon black
3.21:1failpassfail
  • AA: use #9959c9 as the text (4.63:1)
  • AAA: use #b384d7 as the text (7.2:1)
  • AA: or shift the background to #d6d6d6 (4.5:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #803bb5 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

#803bb5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #803bb5
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #803bb5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/803bb5-b79cc4-c2cb62-2d1f2d-eae9f1?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