Color

#5a40ba

#5a40ba
hex#5a40ba
rgbrgb(90, 64, 186)
hslhsl(253, 49%, 49%)
oklchoklch(0.473 0.182 287)
Closest name: Blurple (#5539cc)Relative luminance 0.0939

Colors that go with #5a40ba

Charcoal, Sea Green and Amber 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 →

#a0ba40

#4062ba · #9740ba

#ba5a40 · #40ba5a

Split-complementary

Open in tool →

#ba9740 · #62ba40

#ba4062 · #a0ba40 · #40ba97

Contrast

#5a40ba as textRatioAAAA largeAAAFix
Aaon white
7.3:1passpasspassPasses AAA — no fix needed.
Aaon black
2.88:1failfailfail
  • AA: use #7d67cb as the text (4.67:1)
  • AAA: use #9d8dd8 as the text (7.24:1)
  • AA: or shift the background to #cccccc (4.55:1)
  • AAA: or shift the background to #fcfcfc (7.11:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a40ba 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

#5a40ba reads as cool, modern. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a40ba
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 #5a40ba and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a40ba-a99cc4-dfb84e-281f2d-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