Color

#030b53

#030b53
hex#030b53
rgbrgb(3, 11, 83)
hslhsl(234, 93%, 17%)
oklchoklch(0.218 0.126 265.9)
Closest name: Ravenclaw (#0a0555)Relative luminance 0.0088

Tints & shades

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

Harmonies

Complementary

Open in tool →

#544c03

#033354 · #230354

#54030b · #0b5403

Split-complementary

Open in tool →

#542303 · #335403

#540333 · #544c03 · #035423

Contrast

#030b53 as textRatioAAAA largeAAAFix
Aaon white
17.85:1passpasspassPasses AAA — no fix needed.
Aaon black
1.18:1failfailfail
  • AA: use #5363f9 as the text (4.52:1)
  • AAA: use #8490fb as the text (7.36:1)
  • AA: or shift the background to #808080 (4.52:1)
  • AAA: or shift the background to #a3a3a3 (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #030b53 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

#030b53 reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #030b53
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 #030b53 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/030b53-9d9cc4-df8a4e-241f2d-e9eef1?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