# #ff5f1f

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

## Values

- Hex: `#ff5f1f`
- RGB: rgb(255, 95, 31)
- HSL: hsl(17, 100%, 56%)
- OKLCH: oklch(0.688 0.207 39.1)
- Relative luminance: 0.2954
- Nearest named color: tomato (#ff6347, Δ 2.741) — https://brandsweets.com/colors/tomato
- Moods: warm, vivid, playful, bold
- Page: https://brandsweets.com/colors/ff5f1f

## Tints & shades

- Tints (toward white): #ff6d33, #ff7b47, #ff8e61, #ff9c75, #ffab8a, #ffba9e, #ffc8b3, #ffdacc, #ffe9e0, #fff8f5
- Shades (toward black): #ff4c05, #eb4200, #cc3a00, #b33300, #992b00, #802400, #661d00, #471400, #2e0d00, #140600

## Harmonies

- Complementary: #1fbfff
- Analogous: #ff1f4f, #ffce1f
- Triadic: #1fff5e, #5e1fff
- Split-complementary: #1fffce, #1f4fff
- Tetradic: #4fff1f, #1fbfff, #ce1fff

## Colors that go with #ff5f1f

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 #ff5f1f: its slight blue cast keeps type crisp beside a warm colour where pure #000 looks heavy. Seen in: dbt Labs (https://brandsweets.com/colors/brands/getdbt-com), Harley-Davidson (https://brandsweets.com/colors/brands/harley-davidson-com), HubSpot (https://brandsweets.com/colors/brands/hubspot-com), Hermès (https://brandsweets.com/colors/brands/hermes-com). — https://brandsweets.com/colors/charcoal
- **Light Sea Green** #20b2aa [harmony, pool: complementary] — Light Sea Green sits directly opposite #ff5f1f on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Lido (https://brandsweets.com/palettes/vivid#lido). — https://brandsweets.com/colors/lightseagreen
- **Amber** #ffbf00 [pool] — Amber is paired with #ff5f1f in 8 real palettes, including Ember and Heatwave, as the accent. Seen in: Ember (https://brandsweets.com/palettes/bold#ember), Heatwave (https://brandsweets.com/palettes/warm#heatwave), Maple (https://brandsweets.com/palettes/warm#maple), Google (https://brandsweets.com/colors/brands/google-com). — https://brandsweets.com/colors/amber
- **Blue** #0000ff [pool] — 7 real palettes, including Readymag's brand system and Monzo's brand system put Blue beside #ff5f1f, as the supporting colour. Seen in: Readymag (https://brandsweets.com/colors/brands/readymag-com), Monzo (https://brandsweets.com/colors/brands/monzo-com), Sketch (https://brandsweets.com/colors/brands/sketch-com), Glossier (https://brandsweets.com/colors/brands/glossier-com). — https://brandsweets.com/colors/blue
- **Cadet Blue** #5f9ea0 [pool] — Designers have shipped Cadet Blue with #ff5f1f: 4 real palettes, including Alpine and Diner, as the supporting colour. Seen in: Alpine (https://brandsweets.com/palettes/cool#alpine), Diner (https://brandsweets.com/palettes/vivid#diner), Paper & Pine (https://brandsweets.com/palettes/minimal#paper-and-pine), Dusk (https://brandsweets.com/palettes/cool#dusk). — https://brandsweets.com/colors/cadetblue
- **Cobalt Blue** #0047ab [pool] — Designers have shipped Cobalt Blue with #ff5f1f: 4 real palettes, including Tide's brand system and NASA's brand system, as the lead colour. Seen in: Tide (https://brandsweets.com/colors/brands/tide-com), NASA (https://brandsweets.com/colors/brands/nasa-gov), Cobalt Pop (https://brandsweets.com/palettes/bold#cobalt-pop), Walgreens (https://brandsweets.com/colors/brands/walgreens-com). — https://brandsweets.com/colors/cobalt
- **Cornflower Blue** #6495ed [harmony, pool: split] — Cornflower Blue is a split-complement of #ff5f1f: nearly opposite, so it still pops against it, without the vibrating edge of a true complement. Seen in: Roblox (https://brandsweets.com/colors/brands/roblox-com), Ahrefs (https://brandsweets.com/colors/brands/ahrefs-com), JBL (https://brandsweets.com/colors/brands/jbl-com). — https://brandsweets.com/colors/cornflowerblue
- **Crimson** #dc143c [pool] — Crimson is paired with #ff5f1f in 7 real palettes, including Burger King's brand system and Pizza Hut's brand system, as the lead colour. Seen in: Burger King (https://brandsweets.com/colors/brands/bk-com), Pizza Hut (https://brandsweets.com/colors/brands/pizzahut-com), Wise (https://brandsweets.com/colors/brands/wise-com), Redfin (https://brandsweets.com/colors/brands/redfin-com). — https://brandsweets.com/colors/crimson

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

- On white (#ffffff): 3.04:1 — AA fail, AA-large pass, AAA fail. Fix: AA: text → #d63d00 (4.64:1); AA: background → #2b2b2b (4.66:1); AAA: text → #a32e00 (7.12:1)
- On black (#000000): 6.91:1 — AA pass, AA-large pass, AAA fail. Fix: AAA: text → #ff6224 (7.02:1)

## Brands using this color

- **Cloudflare** — secondary #ff5e1f (Δ 0.176) — https://brandsweets.com/colors/brands/cloudflare
- **dbt Labs** — primary #fc6304 (Δ 1.357) — https://brandsweets.com/colors/brands/getdbt-com
- **Grafana Labs** — secondary #ff671d (Δ 1.487) — https://brandsweets.com/colors/brands/grafana-com
- **Intercom** — secondary #ff5600 (Δ 1.497) — https://brandsweets.com/colors/brands/intercom-com
- **Substack** — accent #ff6719 (Δ 1.558) — https://brandsweets.com/colors/brands/substack-com
- **Soundcloud** — secondary #ff5500 (Δ 1.633) — https://brandsweets.com/colors/brands/soundcloud-com
- **FedEx** — secondary #ff6600 (Δ 1.777) — https://brandsweets.com/colors/brands/fedex-com
- **Fivetran blue** — accent #fe6703 (Δ 1.892) — https://brandsweets.com/colors/brands/fivetran-com
- **Harley-Davidson** — secondary #fa6600 (Δ 1.948) — https://brandsweets.com/colors/brands/harley-davidson-com

## Curated palettes containing it

- **Night Market** (neon, vivid, dark, warm) — #ff5f1f, #ff2fb3, #ffd400, #120b14, #fff1e6 — Orange, magenta and yellow neon on aubergine-black — the street-sign palette for food, nightlife and events. — tool: https://brandsweets.com/palettes/new/ff5f1f-ff2fb3-ffd400-120b14-fff1e6 — collection: https://brandsweets.com/palettes/neon

## 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/ff5f1f-c4ac9c-62cbb6-2d291f-f1e9eb?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: "#ff5f1f" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.