Color

#049cfb

#049cfb
hex#049cfb
rgbrgb(4, 156, 251)
hslhsl(203, 97%, 50%)
oklchoklch(0.674 0.176 246.9)
Closest name: Fresh Blue of Bel Air (#069af3)Relative luminance 0.3077

Colors that go with #049cfb

Charcoal, Tomato and Bronze 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 →

#fb6304

#04fbde · #0421fb

#fb049c · #9cfb04

Split-complementary

Open in tool →

#fb0421 · #fbde04

#de04fb · #fb6304 · #21fb04

Contrast

#049cfb as textRatioAAAA largeAAAFix
Aaon white
2.94:1failfailfail
  • AA: use #037ac4 as the text (4.58:1)
  • AAA: use #025b92 as the text (7.21:1)
  • AA: or shift the background to #2e2e2e (4.63:1)
  • AAA: or shift the background to #030303 (7.03:1)
Aaon black
7.15:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #049cfb as the background.

Brands using this color

Fonts for this mood

#049cfb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #049cfb
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 #049cfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/049cfb-9cb0c4-df4e5d-1f222d-e9f1f0?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