Color

#001fbd

#001fbd
hex#001fbd
rgbrgb(0, 31, 189)
hslhsl(230, 100%, 37%)
oklchoklch(0.382 0.235 264.2)
Closest name: mediumblue (#0000cd)Relative luminance 0.0465

Tints & shades

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

Harmonies

Complementary

Open in tool →

#bd9d00

#007ebd · #3f00bd

#bd001f · #1fbd00

Split-complementary

Open in tool →

#bd3f00 · #7ebd00

#bd007e · #bd9d00 · #00bd3f

Contrast

#001fbd as textRatioAAAA largeAAAFix
Aaon white
10.88:1passpasspassPasses AAA — no fix needed.
Aaon black
1.93:1failfailfail
  • AA: use #4766ff as the text (4.61:1)
  • AAA: use #7a90ff as the text (7.26:1)
  • AA: or shift the background to #a8a8a8 (4.57:1)
  • AAA: or shift the background to #d1d1d1 (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 #001fbd 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

#001fbd reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #001fbd
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 #001fbd and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/001fbd-9c9ec4-df814e-231f2d-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