# #ffb31a

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

## Values

- Hex: `#ffb31a`
- RGB: rgb(255, 179, 26)
- HSL: hsl(40, 100%, 55%)
- OKLCH: oklch(0.818 0.167 77)
- Relative luminance: 0.5357
- Nearest named color: Baklava (#efb435, Δ 2.557) — https://brandsweets.com/colors/baklava
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ffb31a

## Tints & shades

- Tints (toward white): #ffb92e, #ffc247, #ffc95c, #ffcf70, #ffd88a, #ffdf9e, #ffe5b3, #ffecc7, #fff5e0, #fffcf5
- Shades (toward black): #ffaa00, #e69900, #cc8800, #b37700, #996600, #7a5200, #614100, #473000, #2e1f00, #140e00

## Harmonies

- Complementary: #1a66ff
- Analogous: #ff401a, #d9ff1a
- Triadic: #1affb2, #b31aff
- Split-complementary: #1ad9ff, #401aff
- Tetradic: #1aff40, #1a66ff, #ff1ad9

## Colors that go with #ffb31a

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 #ffb31a: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: Beach Hut (https://brandsweets.com/palettes/light#beach-hut), Campus (https://brandsweets.com/palettes/friendly#campus), Mint Modern (https://brandsweets.com/palettes/modern#mint-modern), Coastal (https://brandsweets.com/palettes/cool#coastal). — https://brandsweets.com/colors/charcoal
- **Deep Sky Blue** #00bfff [harmony, pool: complementary] — Deep Sky Blue sits directly opposite #ffb31a 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
- **Champagne** #f7e7ce [pool] — 4 real palettes, including Coffee Bar and Midnight Luxe put Champagne beside #ffb31a, as that palette's text colour. Seen in: Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Midnight Luxe (https://brandsweets.com/palettes/luxury#midnight-luxe), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Bramble (https://brandsweets.com/palettes/muted#bramble). — https://brandsweets.com/colors/champagne
- **Cornflower Blue** #6495ed [pool] — Designers have shipped Cornflower Blue with #ffb31a: 6 real palettes, including Mastodon hosted on mastodon.social's brand system and Blueprint, as the supporting colour. Seen in: 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), Gopro (https://brandsweets.com/colors/brands/gopro-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #ffb31a in 8 real palettes, including McDonald's's brand system and Tequila Sunrise, as the supporting colour. Seen in: McDonald's (https://brandsweets.com/colors/brands/mcdonalds-com), Tequila Sunrise (https://brandsweets.com/palettes/vivid#tequila-sunrise), Wells Fargo (https://brandsweets.com/colors/brands/wellsfargo-com), Tabloid (https://brandsweets.com/palettes/editorial#tabloid). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #ffb31a 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 #ffb31a: 11 real palettes, including Wikipedia's brand system and Gopro's brand system, as the supporting colour. Seen in: Wikipedia (https://brandsweets.com/colors/brands/wikipedia-org), Gopro (https://brandsweets.com/colors/brands/gopro-com), Warner Bros. (https://brandsweets.com/colors/brands/warnerbros-com), Walmart (https://brandsweets.com/colors/brands/walmart-com). — https://brandsweets.com/colors/denim
- **Dodger Blue** #1e90ff [pool] — Designers have shipped Dodger Blue with #ffb31a: 7 real palettes, including Heatwave and Google's brand system, as the accent. Seen in: Heatwave (https://brandsweets.com/palettes/warm#heatwave), Google (https://brandsweets.com/colors/brands/google-com), PostHog (https://brandsweets.com/colors/brands/posthog-com), Playground (https://brandsweets.com/palettes/bold#playground). — https://brandsweets.com/colors/dodgerblue

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

- On white (#ffffff): 1.79:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #9e6900 (4.69:1); AA: background → #4f4f4f (4.57:1); AAA: text → #754e00 (7.38:1); AAA: background → #333333 (7.05:1)
- On black (#000000): 11.71:1 — AA pass, AA-large pass, AAA pass

## Brands using this color

- **Mistral AI** — secondary #ffaf01 (Δ 0.927) — https://brandsweets.com/colors/brands/mistral-ai
- **Olympics** — secondary #fcb131 (Δ 1.205) — https://brandsweets.com/colors/brands/olympics-com
- **Rivian** — accent #ffac00 (Δ 1.592) — https://brandsweets.com/colors/brands/rivian-com
- **Mastodon hosted on mastodon.social** — accent #ffb900 (Δ 1.652) — https://brandsweets.com/colors/brands/mastodon-social

## Curated palettes containing it

- **Heatwave** (summer, warm, bold, vivid) — #ff4d00, #ffb800, #0091ff, #fff9f0, #231205 — Blaze orange and hot yellow with one cold blue — the high-noon palette; use the blue where the eye needs to rest. — tool: https://brandsweets.com/palettes/new/ff4d00-ffb800-0091ff-fff9f0-231205 — collection: https://brandsweets.com/palettes/summer

## 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/ffb31a-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: "#ffb31a" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.