Color

#300056

#300056
hex#300056
rgbrgb(48, 0, 86)
hslhsl(273, 100%, 17%)
oklchoklch(0.254 0.134 301.8)
Closest name: Hollow Knight (#330055)Relative luminance 0.013

Tints & shades

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

Harmonies

Complementary

Open in tool →

#275700

#040057 · #570052

#573000 · #005730

Split-complementary

Open in tool →

#525700 · #005704

#570400 · #275700 · #005257

Contrast

#300056 as textRatioAAAA largeAAAFix
Aaon white
16.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.26:1failfailfail
  • AA: use #a538ff as the text (4.61:1)
  • AAA: use #c175ff as the text (7.26:1)
  • AA: or shift the background to #858585 (4.52:1)
  • AAA: or shift the background to #a8a8a8 (7.01:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #300056 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

#300056 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #300056
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 #300056 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/300056-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