Color
#f90101
#f90101rgb(249, 1, 1)hsl(0, 99%, 49%)oklch(0.617 0.253 29.2)Colors that go with #f90101
Charcoal, Steel Blue and Amber 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #f90101: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #f90101: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Amber #ffbf00
shippedAmber is paired with #f90101 in 7 real palettes, including Wired's brand system and Google's brand system, as the accent.
Blue #0000ff
shipped7 real palettes, including native Cybersecurity's brand system and Gap's brand system put Blue beside #f90101, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #f90101: 4 real palettes, including Walgreens's brand system and NASA's brand system, as the accent.
Denim #1560bd
shippedDesigners have shipped Denim with #f90101: 17 real palettes, including L'Oréal's brand system and YouTube's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #f90101: 7 real palettes, including Databricks's brand system and Google's brand system, as the accent.
Firebrick #b22222
shippedDesigners have shipped Firebrick with #f90101: 6 real palettes, including 3M's brand system and Vodafone's brand system, as the supporting colour.
Real palettes that use #f90101
Tints & shades
Harmonies
Contrast
| #f90101 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.17:1 | fail | pass | fail | |
Aaon black | 5.03:1 | pass | pass | fail |
|
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #f90101 as the background.
Brands using this color
- native Cybersecurityprimary · #fc0404 · Δ0.646
- 3Mprimary · #ff0000 · Δ1.203
- Gapsecondary · #ff0000 · Δ1.203
- Heinekenaccent · #ff0000 · Δ1.203
- L'Oréalsecondary · #ff0000 · Δ1.203
- Logitechsecondary · #ff0000 · Δ1.203
- Paddlesecondary · #ff0000 · Δ1.203
- YouTubeprimary · #ff0000 · Δ1.203
- Nikesecondary · #ff0015 · Δ1.363
Fonts for this mood
#f90101 reads as warm, vivid, playful. The font library is tagged with the same vocabulary:
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.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #f90101 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/f90101-c4a19c-62cb98-2d251f-f1e9ed?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md