# #ef5b4e

A color — warm, vivid, playful, bold. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#ef5b4e`
- RGB: rgb(239, 91, 78)
- HSL: hsl(5, 83%, 62%)
- OKLCH: oklch(0.663 0.185 28.1)
- Relative luminance: 0.2638
- Nearest named color: Amour (#ee5851, Δ 0.796) — https://brandsweets.com/colors/amour
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ef5b4e

## Tints & shades

- Tints (toward white): #f06c60, #f2796e, #f38b81, #f5978f, #f6a9a2, #f8bab4, #f9c7c2, #fbd8d5, #fce5e3, #fef6f6
- Shades (toward black): #ec4132, #e92716, #d22314, #b61f11, #9a1a0e, #7e150c, #621109, #4b0d07, #2f0804, #130302

## Harmonies

- Complementary: #4ee1ef
- Analogous: #ef4e91, #efac4e
- Triadic: #4eef5b, #5b4eef
- Split-complementary: #4eefac, #4e91ef
- Tetradic: #91ef4e, #4ee1ef, #ac4eef

## Colors that go with #ef5b4e

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Cadet Blue** #5f9ea0 [harmony, pool: complementary] — Cadet Blue sits directly opposite #ef5b4e on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Diner (https://brandsweets.com/palettes/vivid#diner), Dusk (https://brandsweets.com/palettes/cool#dusk), Clean Beauty (https://brandsweets.com/palettes/minimal#clean-beauty). — https://brandsweets.com/colors/cadetblue
- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #ef5b4e: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Harbour (https://brandsweets.com/palettes/cool#harbour), Tumblr (https://brandsweets.com/colors/brands/tumblr-com), Audi (https://brandsweets.com/colors/brands/audi-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com). — https://brandsweets.com/colors/charcoal
- **Amber** #ffbf00 [pool] — Amber is paired with #ef5b4e in 8 real palettes, including Ember and Google's brand system, as the accent. Seen in: Ember (https://brandsweets.com/palettes/bold#ember), Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Maple (https://brandsweets.com/palettes/warm#maple). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Monzo's brand system and Readymag's brand system put Blue beside #ef5b4e, as the accent. Seen in: Monzo (https://brandsweets.com/colors/brands/monzo-com), Readymag (https://brandsweets.com/colors/brands/readymag-com), Glossier (https://brandsweets.com/colors/brands/glossier-com), Doordash (https://brandsweets.com/colors/brands/doordash-com). — https://brandsweets.com/colors/blue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #ef5b4e: 4 real palettes, including NASA's brand system and Tide's brand system, as the lead colour. Seen in: NASA (https://brandsweets.com/colors/brands/nasa-gov), Tide (https://brandsweets.com/colors/brands/tide-com), Cobalt Pop (https://brandsweets.com/palettes/bold#cobalt-pop), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/cobalt
- **Crimson** #dc143c [pool] — Crimson is paired with #ef5b4e in 9 real palettes, including Redfin's brand system and Snyk's brand system, as the lead colour. Seen in: Redfin (https://brandsweets.com/colors/brands/redfin-com), Snyk (https://brandsweets.com/colors/brands/snyk-io), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ef5b4e: 15 real palettes, including PlanetScale's brand system and Etsy's brand system, as the accent. Seen in: PlanetScale (https://brandsweets.com/colors/brands/planetscale-com), Etsy (https://brandsweets.com/colors/brands/etsy-com), Strava (https://brandsweets.com/colors/brands/strava-com), Postman (https://brandsweets.com/colors/brands/postman-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ef5b4e: 9 real palettes, including Figma's brand system and Google's brand system, as the accent. Seen in: Figma (https://brandsweets.com/colors/brands/figma), Google (https://brandsweets.com/colors/brands/google-com), Replit (https://brandsweets.com/colors/brands/replit), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/dodgerblue

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 3.35:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e52715 (4.53:1); AA: background → #262626 (4.52:1); AAA: text → #ad1d10 (7.09:1)
- On black (#000000): 6.28:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f06c60 (7.02:1)

## Brands using this color

- **Roblox** — accent #e75750 (Δ 1.865) — https://brandsweets.com/colors/brands/roblox-com

## Curated palettes containing it

- **Golden Hour** (sunset, warm, vivid, light) — #f4a259, #f25f5c, #5b3758, #fff7ec, #2b1a2b — Apricot into coral into plum — a sunset flattened to three tokens, with the plum doubling as the twilight text colour. — tool: https://brandsweets.com/palettes/new/f4a259-f25f5c-5b3758-fff7ec-2b1a2b — collection: https://brandsweets.com/palettes/sunset

## Fonts for this mood

- warm: https://brandsweets.com/fonts/mood/warm
- playful: https://brandsweets.com/fonts/mood/playful
- bold: https://brandsweets.com/fonts/mood/bold

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ef5b4e-c4a49c-62cba1-2d261f-f1e9ec?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#ef5b4e" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.