Color

#0139b2

#0139b2
hex#0139b2
rgbrgb(1, 57, 178)
hslhsl(221, 99%, 35%)
oklchoklch(0.408 0.198 262.7)
Closest name: Blue Hour (#0034ab)Relative luminance 0.0615

Tints & shades

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

Harmonies

Complementary

Open in tool →

#b27a01

#0191b2 · #2101b2

#b20139 · #39b201

Split-complementary

Open in tool →

#b22101 · #91b201

#b20191 · #b27a01 · #01b221

Contrast

#0139b2 as textRatioAAAA largeAAAFix
Aaon white
9.42:1passpasspassPasses AAA — no fix needed.
Aaon black
2.23:1failfailfail
  • AA: use #256afe as the text (4.57:1)
  • AAA: use #6293fe as the text (7.12:1)
  • AA: or shift the background to #b5b5b5 (4.59:1)
  • AAA: or shift the background to #dedede (7:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0139b2 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

#0139b2 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #0139b2
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 #0139b2 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0139b2-9ca4c4-df6b4e-211f2d-e9eff1?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