Color

#063bcb

#063bcb
hex#063bcb
rgbrgb(6, 59, 203)
hslhsl(224, 94%, 41%)
oklchoklch(0.438 0.225 263.7)
Closest name: Lapis on Neptune (#1f22d2)Relative luminance 0.0748

Colors that go with #063bcb

Charcoal, Crimson and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

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

Harmonies

Complementary

Open in tool →

#cb9606

#069dcb · #3406cb

#cb063b · #3bcb06

Split-complementary

Open in tool →

#cb3406 · #9dcb06

#cb069d · #cb9606 · #06cb34

Contrast

#063bcb as textRatioAAAA largeAAAFix
Aaon white
8.41:1passpasspassPasses AAA — no fix needed.
Aaon black
2.5:1failfailfail
  • AA: use #3469f9 as the text (4.53:1)
  • AAA: use #6b91fa as the text (7.06:1)
  • AA: or shift the background to #bfbfbf (4.58:1)
  • AAA: or shift the background to #ebebeb (7.06:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #063bcb as the background.

Brands using this color

Fonts for this mood

#063bcb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #063bcb
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #063bcb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/063bcb-9ca2c4-df724e-221f2d-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