Color

#047bfb

#047bfb
hex#047bfb
rgbrgb(4, 123, 251)
hslhsl(211, 97%, 50%)
oklchoklch(0.602 0.211 256.9)
Closest name: Azure (#007fff)Relative luminance 0.2116

Tints & shades

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

Harmonies

Complementary

Open in tool →

#fb8404

#04f7fb · #0804fb

#fb047b · #7bfb04

Split-complementary

Open in tool →

#fb0804 · #f7fb04

#fb04f7 · #fb8404 · #04fb08

Contrast

#047bfb as textRatioAAAA largeAAAFix
Aaon white
4.01:1failpassfail
  • AA: use #0472e7 as the text (4.6:1)
  • AAA: use #0356b0 as the text (7.09:1)
  • AA: or shift the background to #141414 (4.59:1)
Aaon black
5.23:1passpassfail
  • AAA: use #3b98fc as the text (7.08:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #047bfb as the background.

Brands using this color

Fonts for this mood

#047bfb reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #047bfb
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 #047bfb and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/047bfb-9cabc4-df534e-1f202d-e9f1f1?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