Color

#5a00a3

#5a00a3
hex#5a00a3
rgbrgb(90, 0, 163)
hslhsl(273, 100%, 32%)
oklchoklch(0.393 0.211 299.1)
Closest name: Intergalactic Settlement (#5b1e8b)Relative luminance 0.0482

Tints & shades

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

Harmonies

Complementary

Open in tool →

#49a300

#0800a3 · #a3009b

#a35a00 · #00a35a

Split-complementary

Open in tool →

#9ba300 · #00a308

#a30800 · #49a300 · #009ba3

Contrast

#5a00a3 as textRatioAAAA largeAAAFix
Aaon white
10.69:1passpasspassPasses AAA — no fix needed.
Aaon black
1.96:1failfailfail
  • AA: use #a538ff as the text (4.61:1)
  • AAA: use #c175ff as the text (7.26:1)
  • AA: or shift the background to #ababab (4.66:1)
  • AAA: or shift the background to #d1d1d1 (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #5a00a3 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

#5a00a3 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #5a00a3
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 #5a00a3 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/5a00a3-b79cc4-c4cb62-2d1f2d-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