Color
#fb1d09
#fb1d09rgb(251, 29, 9)hsl(5, 97%, 51%)oklch(0.628 0.248 30)Colors that go with #fb1d09
Charcoal, Steel Blue and Cadet 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.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #fb1d09: 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 #fb1d09: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #fb1d09 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Amber #ffbf00
shippedAmber is paired with #fb1d09 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 #fb1d09, as the accent.
Cobalt Blue #0047ab
shippedDesigners have shipped Cobalt Blue with #fb1d09: 5 real palettes, including NASA's brand system and Walgreens's brand system, as the lead colour.
Denim #1560bd
shippedDesigners have shipped Denim with #fb1d09: 15 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 #fb1d09: 7 real palettes, including Databricks's brand system and Google's brand system, as the accent.
Real palettes that use #fb1d09
Tints & shades
Harmonies
Contrast
| #fb1d09 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.98:1 | fail | pass | fail | |
Aaon black | 5.28:1 | 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 #fb1d09 as the background.
Brands using this color
- native Cybersecurityprimary · #fc0404 · Δ0.925
- 3Mprimary · #ff0000 · Δ1.069
- Gapsecondary · #ff0000 · Δ1.069
- Heinekenaccent · #ff0000 · Δ1.069
- L'Oréalsecondary · #ff0000 · Δ1.069
- Logitechsecondary · #ff0000 · Δ1.069
- Paddlesecondary · #ff0000 · Δ1.069
- YouTubeprimary · #ff0000 · Δ1.069
- Nikesecondary · #ff0015 · Δ1.318
- Rotten Tomatoesaccent · #fa320a · Δ1.67
- Databricksprimary · #fc341c · Δ1.899
- Doordashprimary · #ff3008 · Δ1.922
Fonts for this mood
#fb1d09 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 #fb1d09 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/fb1d09-c4a49c-62cba1-2d261f-f1e9ec?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