# #efcf1a

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

## Values

- Hex: `#efcf1a`
- RGB: rgb(239, 207, 26)
- HSL: hsl(51, 87%, 52%)
- OKLCH: oklch(0.856 0.173 97.5)
- Relative luminance: 0.6305
- Nearest named color: Aurora (#ebd147, Δ 1.905) — https://brandsweets.com/colors/aurora
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/efcf1a

## Tints & shades

- Tints (toward white): #f1d432, #f2d845, #f4dd5d, #f5e170, #f7e688, #f8eba0, #faefb3, #fbf4cb, #fdf8de, #fefdf5
- Shades (toward black): #e0c110, #c8ac0e, #b59c0d, #9d870b, #867309, #6e5e08, #564a06, #433905, #2b2503, #131001

## Harmonies

- Complementary: #1a3aef
- Analogous: #ef651a, #a5ef1a
- Triadic: #1aefcf, #cf1aef
- Split-complementary: #1aa5ef, #651aef
- Tetradic: #1aef65, #1a3aef, #ef1aa5

## Colors that go with #efcf1a

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 #efcf1a: 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), Coastal (https://brandsweets.com/palettes/cool#coastal), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Lagoon (https://brandsweets.com/palettes/vivid#lagoon). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: complementary] — Cornflower Blue sits directly opposite #efcf1a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: NBA (https://brandsweets.com/colors/brands/nba-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #efcf1a: 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), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Crimson** #dc143c [pool] — Crimson is paired with #efcf1a in 8 real palettes, including Tabloid and Lay's's brand system, as the lead colour. Seen in: Tabloid (https://brandsweets.com/palettes/editorial#tabloid), Lay's (https://brandsweets.com/colors/brands/lays-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #efcf1a: 10 real palettes, including LEGO's brand system and McDonald's's brand system, as the accent. Seen in: LEGO (https://brandsweets.com/colors/brands/lego-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #efcf1a: 6 real palettes, including Miro's brand system and Star Wars's brand system, as the accent. Seen in: Miro (https://brandsweets.com/colors/brands/miro-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com), Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave). — https://brandsweets.com/colors/dodgerblue
- **Midnight Blue** #191970 [pool] — 4 real palettes, including FIFA's brand system and Southwest Airlines's brand system put Midnight Blue beside #efcf1a, as the lead colour. Seen in: FIFA (https://brandsweets.com/colors/brands/fifa-com), Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), American Eagle (https://brandsweets.com/colors/brands/ae-com), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/midnightblue
- **Orange Red** #ff4500 [pool] — Orange Red is paired with #efcf1a in 4 real palettes, including Google's brand system and Heatwave, as the supporting colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Streetwear (https://brandsweets.com/palettes/bold#streetwear), Brex (https://brandsweets.com/colors/brands/brex-com). — https://brandsweets.com/colors/orangered

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

- On white (#ffffff): 1.54:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #867309 (4.7:1); AA: background → #595959 (4.54:1); AAA: text → #645607 (7.3:1); AAA: background → #3d3d3d (7.04:1)
- On black (#000000): 13.61:1 — AA pass, AA-large pass, AAA pass

## Curated palettes containing it

- **Tabloid** (editorial, bold, vivid) — #e11d48, #111111, #facc15, #ffffff — Red, black and yellow on white is the loudest three-color system in print — use it when headlines are the product. — tool: https://brandsweets.com/palettes/new/e11d48-111111-facc15-ffffff — collection: https://brandsweets.com/palettes/editorial
- **Garnet** (jewel-tones, warm, dark, bold) — #9b1c31, #c2410c, #facc15, #1a0b0f, #fbeaea — Garnet, carnelian and citrine on a wine-black — the warm jewel set for spirits, theatre and jewellery itself. — tool: https://brandsweets.com/palettes/new/9b1c31-c2410c-facc15-1a0b0f-fbeaea — collection: https://brandsweets.com/palettes/jewel-tones

## 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/efcf1a-c4c29c-4eaadf-292d1f-f1ece9?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: "#efcf1a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.