# #ecef52

A color — vivid. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#ecef52`
- RGB: rgb(236, 239, 82)
- HSL: hsl(61, 83%, 63%)
- OKLCH: oklch(0.922 0.173 110.4)
- Relative luminance: 0.8018
- Nearest named color: Buttercup Glow (#f1f458, Δ 1.492) — https://brandsweets.com/colors/buttercup-glow
- Moods: vivid
- Page: https://brandsweets.com/colors/ecef52

## Tints & shades

- Tints (toward white): #eef165, #f0f273, #f2f486, #f3f594, #f5f7a6, #f7f8b4, #f9fac7, #fafbd5, #fcfde8, #fefef6
- Shades (toward black): #e9ec36, #e6ea1a, #cfd214, #b3b611, #9c9f0f, #81830c, #65670a, #4a4b07, #2e2f04, #121302

## Harmonies

- Complementary: #5552ef
- Analogous: #efa352, #9eef52
- Triadic: #52ecef, #ef52ec
- Split-complementary: #529eef, #a352ef
- Tetradic: #52efa3, #5552ef, #ef529e

## Colors that go with #ecef52

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 #ecef52: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Zendesk (https://brandsweets.com/colors/brands/zendesk-com), Lagoon (https://brandsweets.com/palettes/vivid#lagoon), Lido (https://brandsweets.com/palettes/vivid#lido), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Lilac** #c8a2c8 [harmony, pool: complementary] — Lilac sits directly opposite #ecef52 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com). — https://brandsweets.com/colors/lilac
- **Blue** #0000ff [pool] — 4 real palettes, including Snapchat's brand system and Bumble's brand system put Blue beside #ecef52, as the supporting colour. Seen in: Snapchat (https://brandsweets.com/colors/brands/snapchat-com), Bumble (https://brandsweets.com/colors/brands/bumble-com), Binance (https://brandsweets.com/colors/brands/binance-com), Robinhood (https://brandsweets.com/colors/brands/robinhood-com). — https://brandsweets.com/colors/blue
- **Crimson** #dc143c [pool] — Crimson is paired with #ecef52 in 8 real palettes, including Ferrari's brand system and Lay's's brand system, as the lead colour. Seen in: Ferrari (https://brandsweets.com/colors/brands/ferrari-com), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #ecef52: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint). — https://brandsweets.com/colors/deepskyblue
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ecef52: 6 real palettes, including Ikea's brand system and FIFA's brand system, as the accent. Seen in: Ikea (https://brandsweets.com/colors/brands/ikea-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), LEGO (https://brandsweets.com/colors/brands/lego-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Red** #ff0000 [pool] — Red is paired with #ecef52 in 4 real palettes, including Heineken's brand system and Paddle's brand system, as the accent. Seen in: Heineken (https://brandsweets.com/colors/brands/heineken-com), Paddle (https://brandsweets.com/colors/brands/paddle-com), Phantom: The money app that'll take you placesLogo PhantomLogo PhantomLogo Phantom (https://brandsweets.com/colors/brands/phantom-com), Wise (https://brandsweets.com/colors/brands/wise-com). — https://brandsweets.com/colors/red
- **Taupe** #483c32 [pool] — Taupe is paired with #ecef52 in 11 real palettes, including Crayon Box and Calvin Klein's brand system, as the text colour against it. Seen in: Crayon Box (https://brandsweets.com/palettes/playful#crayon-box), Calvin Klein (https://brandsweets.com/colors/brands/calvinklein-us), Tommy Hilfiger (https://brandsweets.com/colors/brands/tommy-com), Citrus Grove (https://brandsweets.com/palettes/warm#citrus-grove). — https://brandsweets.com/colors/taupe

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

- On white (#ffffff): 1.23:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #77790b (4.64:1); AA: background → #666666 (4.66:1); AAA: text → #575908 (7.4:1); AAA: background → #4a4a4a (7.19:1)
- On black (#000000): 17.04:1 — AA pass, AA-large pass, AAA pass

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/ecef52-babea2-4e92df-272d1f-f1ede9?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: "#ecef52" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.