Color

#301c8d

#301c8d
hex#301c8d
rgbrgb(48, 28, 141)
hslhsl(251, 67%, 33%)
oklchoklch(0.342 0.172 280.3)
Closest name: Deep Space Rodeo (#332277)Relative luminance 0.0338

Tints & shades

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

Harmonies

Complementary

Open in tool →

#788d1c

#1c3f8d · #691c8d

#8d301c · #1c8d30

Split-complementary

Open in tool →

#8d691c · #3f8d1c

#8d1c3f · #788d1c · #1c8d69

Contrast

#301c8d as textRatioAAAA largeAAAFix
Aaon white
12.53:1passpasspassPasses AAA — no fix needed.
Aaon black
1.68:1failfailfail
  • AA: use #7961e0 as the text (4.6:1)
  • AAA: use #9988e7 as the text (7.03:1)
  • AA: or shift the background to #9c9c9c (4.56:1)
  • AAA: or shift the background to #c2c2c2 (7.03:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #301c8d 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

#301c8d reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #301c8d
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 #301c8d and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/301c8d-a89cc4-dfb34e-281f2d-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