Color

#837cd5

#837cd5
hex#837cd5
rgbrgb(131, 124, 213)
hslhsl(245, 51%, 66%)
oklchoklch(0.631 0.131 285.6)
Closest name: mediumpurple (#9370db)Relative luminance 0.2404

Colors that go with #837cd5

Charcoal, Amber and Blue 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 →

#cdd57c

#7ca1d5 · #b07cd5

#d5837c · #7cd583

Split-complementary

Open in tool →

#d5b07c · #a1d57c

#d57ca1 · #cdd57c · #7cd5b0

Contrast

#837cd5 as textRatioAAAA largeAAAFix
Aaon white
3.62:1failpassfail
  • AA: use #7169ce as the text (4.55:1)
  • AAA: use #4d42c2 as the text (7.31:1)
  • AA: or shift the background to #1f1f1f (4.56:1)
Aaon black
5.81:1passpassfail
  • AAA: use #968fdb as the text (7.25:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #837cd5 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

#837cd5 reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #837cd5
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 #837cd5 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/837cd5-a49cc4-dfa54e-261f2d-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