# #efca43

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

## Values

- Hex: `#efca43`
- RGB: rgb(239, 202, 67)
- HSL: hsl(47, 84%, 60%)
- OKLCH: oklch(0.848 0.152 93.2)
- Relative luminance: 0.61
- Nearest named color: Aurora (#ebd147, Δ 1.744) — https://brandsweets.com/colors/aurora
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/efca43

## Tints & shades

- Tints (toward white): #f0cf56, #f2d469, #f3d877, #f5de8a, #f6e39c, #f8e8af, #faeec2, #fbf2d0, #fdf7e3, #fefcf6
- Shades (toward black): #ecc227, #e6b814, #caa212, #b28f10, #96780d, #7a620b, #634f09, #463806, #2f2604, #130f02

## Harmonies

- Complementary: #4368ef
- Analogous: #ef7443, #beef43
- Triadic: #43efca, #ca43ef
- Split-complementary: #43beef, #7443ef
- Tetradic: #43ef74, #4368ef, #ef43be

## Colors that go with #efca43

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 #efca43: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Coastal (https://brandsweets.com/palettes/cool#coastal), Lido (https://brandsweets.com/palettes/vivid#lido), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Disney (https://brandsweets.com/colors/brands/disney-com). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: complementary] — Cornflower Blue sits directly opposite #efca43 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 #efca43: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Mistral AI (https://brandsweets.com/colors/brands/mistral-ai). — https://brandsweets.com/colors/deepskyblue
- **Crimson** #dc143c [pool] — Crimson is paired with #efca43 in 9 real palettes, including McDonald's's brand system and Tabloid, as the supporting colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Tabloid (https://brandsweets.com/palettes/editorial#tabloid), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Denim** #1560bd [pool] — Designers have shipped Denim with #efca43: 11 real palettes, including Walmart's brand system and McDonald's's brand system, as the lead colour. Seen in: Walmart (https://brandsweets.com/colors/brands/walmart-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #efca43: 5 real palettes, including Google's brand system and Heatwave, as the lead colour. Seen in: Google (https://brandsweets.com/colors/brands/google-com), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Miro (https://brandsweets.com/colors/brands/miro-com), Star Wars (https://brandsweets.com/colors/brands/starwars-com). — https://brandsweets.com/colors/dodgerblue
- **Medium Sea Green** #3cb371 [pool] — Medium Sea Green is paired with #efca43 in 4 real palettes, including Olympics's brand system and Undergrowth, as the accent. Seen in: Olympics (https://brandsweets.com/colors/brands/olympics-com), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Heineken (https://brandsweets.com/colors/brands/heineken-com). — https://brandsweets.com/colors/mediumseagreen
- **Midnight Blue** #191970 [pool] — 4 real palettes, including Southwest Airlines's brand system and FIFA's brand system put Midnight Blue beside #efca43, as the supporting colour. Seen in: Southwest Airlines (https://brandsweets.com/colors/brands/southwest-com), FIFA (https://brandsweets.com/colors/brands/fifa-com), American Eagle (https://brandsweets.com/colors/brands/ae-com), Open House (https://brandsweets.com/palettes/clean#open-house). — https://brandsweets.com/colors/midnightblue

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

- On white (#ffffff): 1.59:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8d710c (4.67:1); AA: background → #575757 (4.54:1); AAA: text → #675309 (7.45:1); AAA: background → #3b3b3b (7.04:1)
- On black (#000000): 13.2:1 — AA pass, AA-large pass, AAA pass

## 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/efca43-c4c09c-62abcb-2a2d1f-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: "#efca43" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.