Color

#0104bc

#0104bc
hex#0104bc
rgbrgb(1, 4, 188)
hslhsl(239, 99%, 37%)
oklchoklch(0.362 0.248 264.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.0372

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bcb901

#0161bc · #5b01bc

#bc0104 · #04bc01

Split-complementary

Open in tool →

#bc5b01 · #61bc01

#bc0161 · #bcb901 · #01bc5b

Contrast

#0104bc as textRatioAAAA largeAAAFix
Aaon white
12.04:1passpasspassPasses AAA — no fix needed.
Aaon black
1.74:1failfailfail
  • AA: use #5d5ffe as the text (4.53:1)
  • AAA: use #8a8cfe as the text (7.26:1)
  • AA: or shift the background to #a1a1a1 (4.66:1)
  • AAA: or shift the background to #c7c7c7 (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 #0104bc 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

#0104bc reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0104bc
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 #0104bc and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0104bc-a09cc4-df964e-251f2d-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