# #ffac05

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

## Values

- Hex: `#ffac05`
- RGB: rgb(255, 172, 5)
- HSL: hsl(40, 100%, 51%)
- OKLCH: oklch(0.805 0.17 74.2)
- Relative luminance: 0.5078
- Nearest named color: orange (#ffa500, Δ 1.633) — https://brandsweets.com/colors/orange
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ffac05

## Tints & shades

- Tints (toward white): #ffb41f, #ffbb33, #ffc34d, #ffcc66, #ffd480, #ffdb94, #ffe4ad, #ffecc7, #fff3db, #fffcf5
- Shades (toward black): #eb9c00, #d68f00, #bd7e00, #a36d00, #8f5f00, #754e00, #5c3d00, #422c00, #2e1f00, #140e00

## Harmonies

- Complementary: #0558ff
- Analogous: #ff2f05, #d5ff05
- Triadic: #05ffac, #ac05ff
- Split-complementary: #05d5ff, #2f05ff
- Tetradic: #05ff2f, #0558ff, #ff05d5

## Colors that go with #ffac05

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 #ffac05: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Campus (https://brandsweets.com/palettes/friendly#campus), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Amazon (https://brandsweets.com/colors/brands/amazon-com), Beach Hut (https://brandsweets.com/palettes/light#beach-hut). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: complementary] — Deep Sky Blue sits directly opposite #ffac05 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Mistral AI (https://brandsweets.com/colors/brands/mistral-ai), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Salesforce (https://brandsweets.com/colors/brands/salesforce-com), Learning App (https://brandsweets.com/palettes/playful#learning-app). — https://brandsweets.com/colors/deepskyblue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #ffac05: 4 real palettes, including Open House and Coastal, as the supporting colour. Seen in: Open House (https://brandsweets.com/palettes/clean#open-house), Coastal (https://brandsweets.com/palettes/cool#coastal), Diner (https://brandsweets.com/palettes/vivid#diner), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine). — https://brandsweets.com/colors/cadetblue
- **Champagne** #f7e7ce [pool] — 5 real palettes, including Forest Floor and Midnight Luxe put Champagne beside #ffac05, as that palette's text colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/champagne
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #ffac05: 6 real palettes, including Gopro's brand system and Mastodon hosted on mastodon.social's brand system, as the supporting colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Mastodon hosted on mastodon.social (https://brandsweets.com/colors/brands/mastodon-social), Blueprint (https://brandsweets.com/palettes/technical#blueprint), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #ffac05 in 8 real palettes, including Tequila Sunrise and McDonald's's brand system, as the lead colour. Seen in: Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Retro Pop (https://brandsweets.com/palettes/playful#retro-pop), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #ffac05 in 4 real palettes, including Farmers Market and Undergrowth, as the supporting colour. Seen in: Farmers Market (https://brandsweets.com/palettes/warm#farmers-market), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Miro (https://brandsweets.com/colors/brands/miro-com). — https://brandsweets.com/colors/darkolivegreen
- **Denim** #1560bd [pool] — Designers have shipped Denim with #ffac05: 11 real palettes, including Gopro's brand system and Campus, as the lead colour. Seen in: Gopro (https://brandsweets.com/colors/brands/gopro-com), Campus (https://brandsweets.com/palettes/friendly#campus), Amazon (https://brandsweets.com/colors/brands/amazon-com), Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org). — https://brandsweets.com/colors/denim

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

- On white (#ffffff): 1.88:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9e6900 (4.69:1); AA: background → #4a4a4a (4.71:1); AAA: text → #754e00 (7.38:1); AAA: background → #303030 (7.01:1)
- On black (#000000): 11.16:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Rivian** — accent #ffac00 (Δ 0.073) — https://brandsweets.com/colors/brands/rivian-com
- **Rivian** — secondary #ffaa00 (Δ 0.457) — https://brandsweets.com/colors/brands/rivian-com
- **Mistral AI** — secondary #ffaf01 (Δ 0.735) — https://brandsweets.com/colors/brands/mistral-ai
- **Rippling** — primary #ffa81d (Δ 1.213) — https://brandsweets.com/colors/brands/rippling-com
- **Rippling** — accent #ffa81d (Δ 1.213) — https://brandsweets.com/colors/brands/rippling-com
- **Olympics** — secondary #fcb131 (Δ 1.445) — https://brandsweets.com/colors/brands/olympics-com

## 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/ffac05-c4bb9c-62b8cb-2c2d1f-f1ebe9?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: "#ffac05" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.