Color
#ef452e
#ef452ergb(239, 69, 46)hsl(7, 86%, 56%)oklch(0.635 0.21 31)Colors that go with #ef452e
Cadet Blue, Amber and Charcoal 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.
Cadet Blue #5f9ea0
complementaryshippedCadet Blue sits directly opposite #ef452e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight.
Charcoal #36454f
neutralshippedCharcoal is the body-text near-black for #ef452e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy.
Denim #1560bd
shippedDenim is paired with #ef452e in 4 real palettes, including PlanetScale's brand system and Strava's brand system, as the accent — a combination designers have actually shipped, not a computed rotation.
Gold #ffd700
shippedGold is paired with #ef452e in 5 real palettes, including Streetwear and Tequila Sunrise, as the accent — a combination designers have actually shipped, not a computed rotation.
Mustard Yellow #ffdb58
shippedMustard Yellow is paired with #ef452e in 4 real palettes, including Diner and Crayon Box, as the accent — a combination designers have actually shipped, not a computed rotation.
Slate Gray #708090
shippedSlate Gray is paired with #ef452e in 6 real palettes, including Gallery and Clinic, as the supporting colour — a combination designers have actually shipped, not a computed rotation.
Taupe #483c32
shippedTaupe is paired with #ef452e in 12 real palettes, including Cloudflare's brand system and Airbnb's brand system, as the text colour against it — a combination designers have actually shipped, not a computed rotation.
Real palettes that use #ef452e
Tints & shades
Harmonies
Contrast
| #ef452e as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 3.78:1 | fail | pass | fail | |
Aaon black | 5.56:1 | 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 #ef452e as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Fonts for this mood
#ef452e 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 #ef452e and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/ef452e-c4a59c-62cba4-2d271f-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