Color
#fb2109
#fb2109rgb(251, 33, 9)hsl(6, 97%, 51%)oklch(0.629 0.246 30.3)Colors that go with #fb2109
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 #fb2109: 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 #fb2109: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #fb2109 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 #fb2109 in 5 real palettes, including Wired's brand system and Heatwave, as the accent.
Blue #0000ff
shipped7 real palettes, including Pepsi's brand system and native Cybersecurity's brand system put Blue beside #fb2109, as the supporting colour.
Denim #1560bd
shippedDesigners have shipped Denim with #fb2109: 11 real palettes, including ElevenLabs's brand system and Netflix's brand system, as the accent.
Dodger Blue #1e90ff
shippedDesigners have shipped Dodger Blue with #fb2109: 6 real palettes, including Databricks's brand system and Figma's brand system, as the accent.
Gold #ffd700
shippedGold shows up next to #fb2109 in 8 real palettes, including Paddle's brand system and Streetwear, as the lead colour.
Real palettes that use #fb2109
Tints & shades
Harmonies
Contrast
| #fb2109 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.94:1 | fail | pass | fail | |
Aaon black | 5.32:1 | 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 #fb2109 as the background.
Brands using this color
Fonts for this mood
#fb2109 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 #fb2109 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/fb2109-c4a59c-62cba3-2d271f-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