Color
#ef0d01
#ef0d01rgb(239, 13, 1)hsl(3, 99%, 47%)oklch(0.6 0.243 29.6)Colors that go with #ef0d01
Amber, Gold and Dark Cyan 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.
Gold #ffd700
shippedGold is paired with #ef0d01 in 6 real palettes, including Paddle's brand system and Tequila Sunrise, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Dark Cyan #008b8b
complementaryDark Cyan sits directly opposite #ef0d01 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Steel Blue #4682b4
split-complementshippedSteel Blue is a split-complement of #ef0d01: nearly opposite, so it still pops against it, without the vibrating edge of a true complement.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #ef0d01: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Goldenrod #daa520
shippedGoldenrod is paired with #ef0d01 in 3 real palettes, including Noir Beauty and Harvest, as the lead colour — a combination designers have actually shipped, not a computed rotation.
Hunter Green #355e3b
shippedHunter Green is paired with #ef0d01 in 3 real palettes, including Neon's brand system and Trailhead, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #ef0d01 in 3 real palettes, including Gallery and Noir Beauty, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #ef0d01
Tints & shades
Harmonies
Contrast
| #ef0d01 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 4.44:1 | fail | pass | fail | |
Aaon black | 4.73:1 | 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 #ef0d01 as the background.
Brands using this color
Fonts for this mood
#ef0d01 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 #ef0d01 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/ef0d01-c4a39c-62cb9d-2d261f-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