# #ef579c

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

## Values

- Hex: `#ef579c`
- RGB: rgb(239, 87, 156)
- HSL: hsl(333, 83%, 64%)
- OKLCH: oklch(0.677 0.197 355.6)
- Relative luminance: 0.2757
- Nearest named color: Flamboyant Flamingo (#f74480, Δ 4.309) — https://brandsweets.com/colors/flamboyant-flamingo
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ef579c

## Tints & shades

- Tints (toward white): #f165a4, #f278af, #f486b7, #f598c2, #f7a6cb, #f8b4d3, #fac7de, #fbd5e6, #fde8f1, #fef6f9
- Shades (toward black): #ed3b8b, #ea1f7a, #d7146c, #bb115e, #9f0f50, #830c41, #670a33, #4b0725, #2f0417, #130209

## Harmonies

- Complementary: #57efab
- Analogous: #ef57e8, #ef5f57
- Triadic: #9cef57, #579cef
- Split-complementary: #57ef5f, #57e8ef
- Tetradic: #e8ef57, #57efab, #5f57ef

## Colors that go with #ef579c

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

- **Charcoal** #36454f [role, pool] — Charcoal is the body-text near-black for #ef579c: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Audi (https://brandsweets.com/colors/brands/audi-com). — https://brandsweets.com/colors/charcoal
- **Light Sea Green** #20b2aa [harmony, pool: complementary] — Light Sea Green sits directly opposite #ef579c on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/lightseagreen
- **Crimson** #dc143c [pool] — Crimson is paired with #ef579c in 4 real palettes, including Target : Expect More. Pay Less.'s brand system and The Ordinary's brand system, as the lead colour. Seen in: Target : Expect More. Pay Less. (https://brandsweets.com/colors/brands/target-com), The Ordinary (https://brandsweets.com/colors/brands/theordinary-com), Snyk (https://brandsweets.com/colors/brands/snyk-io), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/crimson
- **Mustard Yellow** #ffdb58 [pool] — 4 real palettes, including Lido and Crayon Box put Mustard Yellow beside #ef579c, as the accent. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Meadow (https://brandsweets.com/palettes/light#meadow), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/mustard
- **Taupe** #483c32 [pool] — Taupe is paired with #ef579c in 4 real palettes, including Airbnb's brand system and Raycast's brand system, as the text colour against it. Seen in: Airbnb (https://brandsweets.com/colors/brands/airbnb), Raycast (https://brandsweets.com/colors/brands/raycast), Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Meadow (https://brandsweets.com/palettes/light#meadow). — https://brandsweets.com/colors/taupe
- **Cadet Blue** #5f9ea0 [harmony, pool: split] — Cadet Blue is a split-complement of #ef579c: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/cadetblue
- **Medium Sea Green** #3cb371 [harmony, pool: split] — Medium Sea Green is a split-complement of #ef579c: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal). — https://brandsweets.com/colors/mediumseagreen
- **Cornflower Blue** #6495ed [harmony, pool: triadic] — Cornflower Blue completes a triad with #ef579c — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash. Seen in: Terminal (https://brandsweets.com/palettes/technical#terminal), Roblox (https://brandsweets.com/colors/brands/roblox-com). — https://brandsweets.com/colors/cornflowerblue

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

- On white (#ffffff): 3.22:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #e01570 (4.66:1); AA: background → #292929 (4.51:1); AAA: text → #ad1057 (7.03:1)
- On black (#000000): 6.51:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #f165a4 (7.14:1)

## 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/ef579c-c49ca9-62cb69-2d1f20-f1e9f0?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: "#ef579c" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.