# #efc41a

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

## Values

- Hex: `#efc41a`
- RGB: rgb(239, 196, 26)
- HSL: hsl(48, 87%, 52%)
- OKLCH: oklch(0.834 0.166 92.3)
- Relative luminance: 0.5791
- Nearest named color: Amber (#ffbf00, Δ 2.577) — https://brandsweets.com/colors/amber
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/efc41a

## Tints & shades

- Tints (toward white): #f1cb32, #f2cf45, #f4d65d, #f5da70, #f7e188, #f8e7a0, #faebb3, #fbf2cb, #fdf6de, #fefdf5
- Shades (toward black): #e0b610, #c8a30e, #b5930d, #9d800b, #866d09, #6e5908, #564606, #433605, #2b2303, #131001

## Harmonies

- Complementary: #1a45ef
- Analogous: #ef5a1a, #afef1a
- Triadic: #1aefc4, #c41aef
- Split-complementary: #1aafef, #5a1aef
- Tetradic: #1aef5a, #1a45ef, #ef1aaf

## Colors that go with #efc41a

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 #efc41a: 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), Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Lido (https://brandsweets.com/palettes/vivid#lido), Disney (https://brandsweets.com/colors/brands/disney-com). — https://brandsweets.com/colors/charcoal
- **Cornflower Blue** #6495ed [harmony, pool: complementary] — Cornflower Blue sits directly opposite #efc41a on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: 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), NBA (https://brandsweets.com/colors/brands/nba-com). — https://brandsweets.com/colors/cornflowerblue
- **Deep Sky Blue** #00bfff [harmony, pool: split] — Deep Sky Blue is a split-complement of #efc41a: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Blueprint (https://brandsweets.com/palettes/technical#blueprint), 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 #efc41a in 7 real palettes, including Tabloid and McDonald's's brand system, as the lead colour. Seen in: Tabloid (https://brandsweets.com/palettes/editorial#tabloid), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Diner (https://brandsweets.com/palettes/vivid#diner). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #efc41a in 4 real palettes, including Farmers Market and Miro's brand system, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Miro (https://brandsweets.com/colors/brands/miro-com), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #efc41a: 11 real palettes, including Wikipedia's brand system and Walmart's brand system, as the supporting colour. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Walmart (https://brandsweets.com/colors/brands/walmart-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #efc41a: 6 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 #efc41a in 4 real palettes, including Olympics's brand system and Mint Modern, as the accent. Seen in: Olympics (https://brandsweets.com/colors/brands/olympics-com), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Heineken (https://brandsweets.com/colors/brands/heineken-com). — https://brandsweets.com/colors/mediumseagreen

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

- On white (#ffffff): 1.67:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #8a710a (4.72:1); AA: background → #545454 (4.54:1); AAA: text → #695507 (7.23:1); AAA: background → #383838 (7.02:1)
- On black (#000000): 12.58:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Ahrefs** — secondary #fac000 (Δ 1.795) — https://brandsweets.com/colors/brands/ahrefs-com
- **Wikipedia** — accent #f0bc00 (Δ 1.887) — https://brandsweets.com/colors/brands/wikipedia-org

## 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/efc41a-c4c09c-62aacb-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: "#efc41a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.