Color

#0300a8

#0300a8
hex#0300a8
rgbrgb(3, 0, 168)
hslhsl(241, 100%, 33%)
oklchoklch(0.331 0.229 264.6)
Closest name: Bohemian Blue (#0000aa)Relative luminance 0.0285

Tints & shades

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

Harmonies

Complementary

Open in tool →

#a5a800

#0051a8 · #5700a8

#a80300 · #00a803

Split-complementary

Open in tool →

#a85700 · #51a800

#a80051 · #a5a800 · #00a857

Contrast

#0300a8 as textRatioAAAA largeAAAFix
Aaon white
13.38:1passpasspassPasses AAA — no fix needed.
Aaon black
1.57:1failfailfail
  • AA: use #6461ff as the text (4.7:1)
  • AAA: use #8c8aff as the text (7.19:1)
  • AA: or shift the background to #969696 (4.52:1)
  • AAA: or shift the background to #bdbdbd (7.12:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0300a8 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

#0300a8 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0300a8
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 #0300a8 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0300a8-a19cc4-df9b4e-261f2d-e9edf1?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