brandsweets

Color

#0901f4

#0901f4
hex#0901f4
rgbrgb(9, 1, 244)
hslhsl(242, 99%, 48%)
oklchoklch(0.439 0.302 264.7)
Closest name: Burning Ultrablue (#150aec)Relative luminance 0.0661
CoolVividTechnicalModern
Open in palette toolCheck contrastWhat goes with it ↓

Colors that go with #0901f4

Charcoal, Crimson and Cobalt 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.

Real palettes that use #0901f4

Activision· brandAlaska Airlines· brandBBC· brandBinance· brand

Tints & shades

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

Harmonies

Complementary

Open in tool →
0901f4ebf401

#ebf401

Analogous

Open in tool →
0901f40172f48201f4

#0172f4 · #8201f4

Triadic

Open in tool →
0901f4f4090101f409

#f40901 · #01f409

Split-complementary

Open in tool →
0901f4f4820172f401

#f48201 · #72f401

Tetradic

Open in tool →
0901f4f40172ebf40101f482

#f40172 · #ebf401 · #01f482

Contrast

#0901f4 as textRatioAAAA largeAAAFix
Aaon white
9.04:1passpasspassPasses AAA — no fix needed.
Aaon black
2.32:1failfailfail
  • AA: use #625dfe as the text (4.52:1)
  • AAA: use #8e8afe as the text (7.22:1)
  • AA: or shift the background to #b8b8b8 (4.56:1)
  • AAA: or shift the background to #e3e3e3 (7.05:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #0901f4 as the background.

Brands using this color

Fonts for this mood

#0901f4 reads as cool, vivid, technical. The font library is tagged with the same vocabulary:

Technical fonts →Modern fonts →
mcpConnect your agent — build around #0901f4
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 #0901f4 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/0901f4-a29cc4-df9e4e-261f2d-e9edf1?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