Color

#01255f

#01255f
hex#01255f
rgbrgb(1, 37, 95)
hslhsl(217, 98%, 19%)
oklchoklch(0.283 0.111 259.7)
Closest name: Black Sea Night (#052462)Relative luminance 0.0216

Tints & shades

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

Harmonies

Complementary

Open in tool →

#603c01

#015560 · #0c0160

#600125 · #256001

Split-complementary

Open in tool →

#600c01 · #556001

#600155 · #603c01 · #01600c

Contrast

#01255f as textRatioAAAA largeAAAFix
Aaon white
14.67:1passpasspassPasses AAA — no fix needed.
Aaon black
1.43:1failfailfail
  • AA: use #126cfd as the text (4.59:1)
  • AAA: use #5394fd as the text (7.02:1)
  • AA: or shift the background to #8f8f8f (4.54:1)
  • AAA: or shift the background to #b5b5b5 (7.16:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #01255f 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

#01255f reads as cool, vivid, dark. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #01255f
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 #01255f and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/01255f-9ca7c4-df624e-201f2d-e9f0f1?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